31204052 has 48 divisors (see below), whose sum is σ = 61931520. Its totient is φ = 13634400.

The previous prime is 31204039. The next prime is 31204067. The reversal of 31204052 is 25040213.

31204052 is nontrivially palindromic in base 7.

It is a super-2 number, since 2×31204052² = 1947385722437408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31204052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163277 + ... + 163467.

It is an arithmetic number, because the mean of its divisors is an integer number (1290240).

Almost surely, 2^31204052 is an apocalyptic number.

It is an amenable number.

31204052 is a deficient number, since it is larger than the sum of its proper divisors (30727468).

31204052 is a wasteful number, since it uses less digits than its factorization.

31204052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 31204052 is about 5586.0587179155. The cubic root of 31204052 is about 314.8258111441.

Adding to 31204052 its reverse (25040213), we get a palindrome (56244265).

The spelling of 31204052 in words is "thirty-one million, two hundred four thousand, fifty-two".