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2591040 = 26352699
BaseRepresentation
bin1001111000100101000000
311212122020110
421320211000
51130403130
6131311320
731011024
oct11704500
94778213
102591040
11150a761
12a4b540
136c947a
144b6384
15362ab0
hex278940

2591040 has 56 divisors (see below), whose sum is σ = 8229600. Its totient is φ = 690688.

The previous prime is 2591027. The next prime is 2591041. The reversal of 2591040 is 401952.

It is a junction number, because it is equal to n+sod(n) for n = 2590998 and 2591016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2591041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390 + ... + 2309.

22591040 is an apocalyptic number.

2591040 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 2591040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4114800).

2591040 is an abundant number, since it is smaller than the sum of its proper divisors (5638560).

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

2591040 is a wasteful number, since it uses less digits than its factorization.

2591040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2719 (or 2709 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 2591040 is about 1609.6707737920. The cubic root of 2591040 is about 137.3487482828.

Adding to 2591040 its reverse (401952), we get a palindrome (2992992).

The spelling of 2591040 in words is "two million, five hundred ninety-one thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 160 192 240 320 480 960 2699 5398 8097 10796 13495 16194 21592 26990 32388 40485 43184 53980 64776 80970 86368 107960 129552 161940 172736 215920 259104 323880 431840 518208 647760 863680 1295520 2591040