31040332 has 12 divisors (see below), whose sum is σ = 54398176. Its totient is φ = 15498000.

The previous prime is 31040329. The next prime is 31040369. The reversal of 31040332 is 23304013.

It is an unprimeable number.

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, 2163 + ... + 8170.

Almost surely, 2^31040332 is an apocalyptic number.

It is an amenable number.

31040332 is a deficient number, since it is larger than the sum of its proper divisors (23357844).

31040332 is a wasteful number, since it uses less digits than its factorization.

31040332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11088 (or 11086 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 31040332 is about 5571.3851060576. The cubic root of 31040332 is about 314.2742407854.

Adding to 31040332 its reverse (23304013), we get a palindrome (54344345).

The spelling of 31040332 in words is "thirty-one million, forty thousand, three hundred thirty-two".