31242364 has 6 divisors (see below), whose sum is σ = 54674144. Its totient is φ = 15621180.

The previous prime is 31242347. The next prime is 31242377. The reversal of 31242364 is 46324213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3905292 + ... + 3905299.

Almost surely, 2^31242364 is an apocalyptic number.

It is an amenable number.

31242364 is a deficient number, since it is larger than the sum of its proper divisors (23431780).

31242364 is a wasteful number, since it uses less digits than its factorization.

31242364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7810595 (or 7810593 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

The square root of 31242364 is about 5589.4869174192. The cubic root of 31242364 is about 314.9546050314.

Adding to 31242364 its reverse (46324213), we get a palindrome (77566577).

The spelling of 31242364 in words is "thirty-one million, two hundred forty-two thousand, three hundred sixty-four".