31801468 has 12 divisors (see below), whose sum is σ = 56436912. Its totient is φ = 15676640.

The previous prime is 31801453. The next prime is 31801481. The reversal of 31801468 is 86410813.

It is a super-2 number, since 2×31801468² = 2022666733910048, which contains 22 as substring.

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, 55705 + ... + 56272.

It is an arithmetic number, because the mean of its divisors is an integer number (4703076).

Almost surely, 2^31801468 is an apocalyptic number.

It is an amenable number.

31801468 is a deficient number, since it is larger than the sum of its proper divisors (24635444).

31801468 is a wasteful number, since it uses less digits than its factorization.

31801468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112052 (or 112050 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 31801468 is about 5639.2790319331. The cubic root of 31801468 is about 316.8222855926.

The spelling of 31801468 in words is "thirty-one million, eight hundred one thousand, four hundred sixty-eight".