2493904 has 30 divisors (see below), whose sum is σ = 5622594. Its totient is φ = 1068480.

The previous prime is 2493877. The next prime is 2493923. The reversal of 2493904 is 4093942.

It can be written as a sum of positive squares in only one way, i.e., 1587600 + 906304 = 1260^2 + 952^2 .

It is a super-2 number, since 2×2493904² = 12439114322432, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 807 + ... + 2374.

2^2493904 is an apocalyptic number.

It is an amenable number.

2493904 is an abundant number, since it is smaller than the sum of its proper divisors (3128690).

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

2493904 is a wasteful number, since it uses less digits than its factorization.

2493904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3203 (or 3190 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 2493904 is about 1579.2099290468. The cubic root of 2493904 is about 135.6104771130.

The spelling of 2493904 in words is "two million, four hundred ninety-three thousand, nine hundred four".