31427404 has 6 divisors (see below), whose sum is σ = 54997964. Its totient is φ = 15713700.

The previous prime is 31427399. The next prime is 31427411. The reversal of 31427404 is 40472413.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3928422 + ... + 3928429.

Almost surely, 2^31427404 is an apocalyptic number.

It is an amenable number.

31427404 is a deficient number, since it is larger than the sum of its proper divisors (23570560).

31427404 is a wasteful number, since it uses less digits than its factorization.

31427404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7856855 (or 7856853 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 31427404 is about 5606.0149839257. The cubic root of 31427404 is about 315.5751782158.

Adding to 31427404 its reverse (40472413), we get a palindrome (71899817).

The spelling of 31427404 in words is "thirty-one million, four hundred twenty-seven thousand, four hundred four".