31493492 has 12 divisors (see below), whose sum is σ = 56048160. Its totient is φ = 15479736.

The previous prime is 31493477. The next prime is 31493513. The reversal of 31493492 is 29439413.

It is a congruent number.

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, 66488 + ... + 66959.

It is an arithmetic number, because the mean of its divisors is an integer number (4670680).

Almost surely, 2^31493492 is an apocalyptic number.

It is an amenable number.

31493492 is a deficient number, since it is larger than the sum of its proper divisors (24554668).

31493492 is a wasteful number, since it uses less digits than its factorization.

31493492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133510 (or 133508 counting only the distinct ones).

The product of its digits is 23328, while the sum is 35.

The square root of 31493492 is about 5611.9062714910. The cubic root of 31493492 is about 315.7962287191.

The spelling of 31493492 in words is "thirty-one million, four hundred ninety-three thousand, four hundred ninety-two".