31053904 has 40 divisors (see below), whose sum is σ = 72386240. Its totient is φ = 12607488.

The previous prime is 31053901. The next prime is 31053931. The reversal of 31053904 is 40935013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31053901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5169 + ... + 9424.

It is an arithmetic number, because the mean of its divisors is an integer number (1809656).

Almost surely, 2^31053904 is an apocalyptic number.

It is an amenable number.

31053904 is an abundant number, since it is smaller than the sum of its proper divisors (41332336).

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

31053904 is a wasteful number, since it uses less digits than its factorization.

31053904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14627 (or 14621 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 31053904 is about 5572.6029824490. The cubic root of 31053904 is about 314.3200382819.

Adding to 31053904 its reverse (40935013), we get a palindrome (71988917).

The spelling of 31053904 in words is "thirty-one million, fifty-three thousand, nine hundred four".