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2667040 = 25579211
BaseRepresentation
bin1010001011001000100000
312000111111021
422023020200
51140321130
6133055224
731445425
oct12131040
95014437
102667040
111561872
12a87514
13724c3c
144d5d4c
1537a37a
hex28b220

2667040 has 48 divisors (see below), whose sum is σ = 6410880. Its totient is φ = 1048320.

The previous prime is 2667031. The next prime is 2667047. The reversal of 2667040 is 407662.

It is a super-2 number, since 2×26670402 = 14226204723200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2666996 and 2667014.

It is not an unprimeable number, because it can be changed into a prime (2667047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12535 + ... + 12745.

It is an arithmetic number, because the mean of its divisors is an integer number (133560).

22667040 is an apocalyptic number.

2667040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2667040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3205440).

2667040 is an abundant number, since it is smaller than the sum of its proper divisors (3743840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2667040 is a wasteful number, since it uses less digits than its factorization.

2667040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 2667040 is about 1633.1074673762. The cubic root of 2667040 is about 138.6787259400.

The spelling of 2667040 in words is "two million, six hundred sixty-seven thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 79 80 158 160 211 316 395 422 632 790 844 1055 1264 1580 1688 2110 2528 3160 3376 4220 6320 6752 8440 12640 16669 16880 33338 33760 66676 83345 133352 166690 266704 333380 533408 666760 1333520 2667040