31053204 has 72 divisors (see below), whose sum is σ = 96620160. Its totient is φ = 8188992.

The previous prime is 31053179. The next prime is 31053221. The reversal of 31053204 is 40235013.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1464 + ... + 8015.

Almost surely, 2^31053204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31053204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48310080).

31053204 is an abundant number, since it is smaller than the sum of its proper divisors (65566956).

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

31053204 is a wasteful number, since it uses less digits than its factorization.

31053204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9509 (or 9504 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 31053204 is about 5572.5401748215. The cubic root of 31053204 is about 314.3176765211.

Adding to 31053204 its reverse (40235013), we get a palindrome (71288217).

The spelling of 31053204 in words is "thirty-one million, fifty-three thousand, two hundred four".