31423024 has 20 divisors (see below), whose sum is σ = 62299336. Its totient is φ = 15345792.

The previous prime is 31422997. The next prime is 31423033. The reversal of 31423024 is 42032413.

It is a junction number, because it is equal to n+sod(n) for n = 31422992 and 31423010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22149 + ... + 23524.

Almost surely, 2^31423024 is an apocalyptic number.

It is an amenable number.

31423024 is a deficient number, since it is larger than the sum of its proper divisors (30876312).

31423024 is a wasteful number, since it uses less digits than its factorization.

31423024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45724 (or 45718 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 31423024 is about 5605.6243184859. The cubic root of 31423024 is about 315.5605170886.

Adding to 31423024 its reverse (42032413), we get a palindrome (73455437).

The spelling of 31423024 in words is "thirty-one million, four hundred twenty-three thousand, twenty-four".