2490656 has 24 divisors (see below), whose sum is σ = 5604480. Its totient is φ = 1067328.

The previous prime is 2490637. The next prime is 2490659. The reversal of 2490656 is 6560942.

2490656 = 4² + 5² + ... + 195².

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (2490659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5336 + ... + 5783.

It is an arithmetic number, because the mean of its divisors is an integer number (233520).

2^2490656 is an apocalyptic number.

It is an amenable number.

2490656 is an abundant number, since it is smaller than the sum of its proper divisors (3113824).

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

2490656 is a wasteful number, since it uses less digits than its factorization.

2490656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11136 (or 11128 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 2490656 is about 1578.1812316714. The cubic root of 2490656 is about 135.5515796061.

The spelling of 2490656 in words is "two million, four hundred ninety thousand, six hundred fifty-six".