31368404 has 12 divisors (see below), whose sum is σ = 56665728. Its totient is φ = 15178200.

The previous prime is 31368397. The next prime is 31368409. The reversal of 31368404 is 40486313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31368409) 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, 126362 + ... + 126609.

It is an arithmetic number, because the mean of its divisors is an integer number (4722144).

Almost surely, 2^31368404 is an apocalyptic number.

It is an amenable number.

31368404 is a deficient number, since it is larger than the sum of its proper divisors (25297324).

31368404 is a wasteful number, since it uses less digits than its factorization.

31368404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253006 (or 253004 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 31368404 is about 5600.7503068785. The cubic root of 31368404 is about 315.3775736130.

The spelling of 31368404 in words is "thirty-one million, three hundred sixty-eight thousand, four hundred four".