2631904 has 24 divisors (see below), whose sum is σ = 5653368. Its totient is φ = 1196160.

The previous prime is 2631887. The next prime is 2631917. The reversal of 2631904 is 4091362.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3387 + ... + 4090.

It is an arithmetic number, because the mean of its divisors is an integer number (235557).

2^2631904 is an apocalyptic number.

It is an amenable number.

2631904 is an abundant number, since it is smaller than the sum of its proper divisors (3021464).

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

2631904 is a wasteful number, since it uses less digits than its factorization.

2631904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7498 (or 7490 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2631904 is about 1622.3143961637. The cubic root of 2631904 is about 138.0670401705.

The spelling of 2631904 in words is "two million, six hundred thirty-one thousand, nine hundred four".