31930268 has 6 divisors (see below), whose sum is σ = 55877976. Its totient is φ = 15965132.

The previous prime is 31930231. The next prime is 31930271. The reversal of 31930268 is 86203913.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3991280 + ... + 3991287.

It is an arithmetic number, because the mean of its divisors is an integer number (9312996).

Almost surely, 2^31930268 is an apocalyptic number.

It is an amenable number.

31930268 is a deficient number, since it is larger than the sum of its proper divisors (23947708).

31930268 is a wasteful number, since it uses less digits than its factorization.

31930268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7982571 (or 7982569 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 31930268 is about 5650.6873918135. The cubic root of 31930268 is about 317.2494329936.

The spelling of 31930268 in words is "thirty-one million, nine hundred thirty thousand, two hundred sixty-eight".