2490864 has 20 divisors (see below), whose sum is σ = 6434856. Its totient is φ = 830272.

The previous prime is 2490847. The next prime is 2490869. The reversal of 2490864 is 4680942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2490869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25899 + ... + 25994.

2^2490864 is an apocalyptic number.

2490864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2490864 is an abundant number, since it is smaller than the sum of its proper divisors (3943992).

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

2490864 is a wasteful number, since it uses less digits than its factorization.

2490864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51904 (or 51898 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 2490864 is about 1578.2471289377. The cubic root of 2490864 is about 135.5553529016. Note that the first 3 decimals are identical.

The spelling of 2490864 in words is "two million, four hundred ninety thousand, eight hundred sixty-four".