31042304 has 18 divisors (see below), whose sum is σ = 61963860. Its totient is φ = 15521024.

The previous prime is 31042303. The next prime is 31042307. The reversal of 31042304 is 40324013.

It is not an unprimeable number, because it can be changed into a prime (31042303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60374 + ... + 60885.

Almost surely, 2^31042304 is an apocalyptic number.

It is an amenable number.

31042304 is a deficient number, since it is larger than the sum of its proper divisors (30921556).

31042304 is an equidigital number, since it uses as much as digits as its factorization.

31042304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121275 (or 121261 counting only the distinct ones).

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

The square root of 31042304 is about 5571.5620789865. The cubic root of 31042304 is about 314.2808959513.

Adding to 31042304 its reverse (40324013), we get a palindrome (71366317).

The spelling of 31042304 in words is "thirty-one million, forty-two thousand, three hundred four".