39131330 has 32 divisors (see below), whose sum is σ = 80714880. Its totient is φ = 13380480.

The previous prime is 39131321. The next prime is 39131341. The reversal of 39131330 is 3313193.

It is a junction number, because it is equal to n+sod(n) for n = 39131296 and 39131305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47966 + ... + 48774.

It is an arithmetic number, because the mean of its divisors is an integer number (2522340).

Almost surely, 2^39131330 is an apocalyptic number.

39131330 is an abundant number, since it is smaller than the sum of its proper divisors (41583550).

39131330 is a wasteful number, since it uses less digits than its factorization.

39131330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514.

The product of its (nonzero) digits is 729, while the sum is 23.

The square root of 39131330 is about 6255.5039764994. The cubic root of 39131330 is about 339.5013740588.

The spelling of 39131330 in words is "thirty-nine million, one hundred thirty-one thousand, three hundred thirty".