31304204 has 12 divisors (see below), whose sum is σ = 54876864. Its totient is φ = 15625104.

The previous prime is 31304201. The next prime is 31304227. The reversal of 31304204 is 40240313.

It is not an unprimeable number, because it can be changed into a prime (31304201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4019 + ... + 8874.

It is an arithmetic number, because the mean of its divisors is an integer number (4573072).

Almost surely, 2^31304204 is an apocalyptic number.

It is an amenable number.

31304204 is a deficient number, since it is larger than the sum of its proper divisors (23572660).

31304204 is a wasteful number, since it uses less digits than its factorization.

31304204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13504 (or 13502 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 31304204 is about 5595.0159964025. The cubic root of 31304204 is about 315.1622713093.

Adding to 31304204 its reverse (40240313), we get a palindrome (71544517).

The spelling of 31304204 in words is "thirty-one million, three hundred four thousand, two hundred four".