31339492 has 12 divisors (see below), whose sum is σ = 55387836. Its totient is φ = 15514400.

The previous prime is 31339489. The next prime is 31339507. The reversal of 31339492 is 29493313.

It can be written as a sum of positive squares in 2 ways, for example, as 30536676 + 802816 = 5526^2 + 896^2 .

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, 38383 + ... + 39190.

It is an arithmetic number, because the mean of its divisors is an integer number (4615653).

Almost surely, 2^31339492 is an apocalyptic number.

It is an amenable number.

31339492 is a deficient number, since it is larger than the sum of its proper divisors (24048344).

31339492 is a wasteful number, since it uses less digits than its factorization.

31339492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77678 (or 77676 counting only the distinct ones).

The product of its digits is 17496, while the sum is 34.

The square root of 31339492 is about 5598.1686291143. The cubic root of 31339492 is about 315.2806501904.

The spelling of 31339492 in words is "thirty-one million, three hundred thirty-nine thousand, four hundred ninety-two".