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2490740 = 225717791
BaseRepresentation
bin1001100000000101110100
311200112122122
421200011310
51114200430
6125215112
730112430
oct11400564
94615578
102490740
11145136a
12a01498
13692915
1448b9c0
15342ee5
hex260174

2490740 has 24 divisors (see below), whose sum is σ = 5978112. Its totient is φ = 853920.

The previous prime is 2490737. The next prime is 2490743. The reversal of 2490740 is 470942.

2490740 = T231 + T232 + ... + T300.

It is an interprime number because it is at equal distance from previous prime (2490737) and next prime (2490743).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2490743) 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, 8756 + ... + 9035.

It is an arithmetic number, because the mean of its divisors is an integer number (249088).

22490740 is an apocalyptic number.

2490740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2490740 is an abundant number, since it is smaller than the sum of its proper divisors (3487372).

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

2490740 is a wasteful number, since it uses less digits than its factorization.

2490740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17807 (or 17805 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 2490740 is about 1578.2078443602. The cubic root of 2490740 is about 135.5531034623.

The spelling of 2490740 in words is "two million, four hundred ninety thousand, seven hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 17791 35582 71164 88955 124537 177910 249074 355820 498148 622685 1245370 2490740