31860468 has 36 divisors (see below), whose sum is σ = 81128320. Its totient is φ = 10542096.

The previous prime is 31860449. The next prime is 31860509. The reversal of 31860468 is 86406813.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1821 + ... + 8187.

Almost surely, 2^31860468 is an apocalyptic number.

It is an amenable number.

31860468 is an abundant number, since it is smaller than the sum of its proper divisors (49267852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31860468 is a wasteful number, since it uses less digits than its factorization.

31860468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6516 (or 6511 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 31860468 is about 5644.5077730481. The cubic root of 31860468 is about 317.0180938167.

The spelling of 31860468 in words is "thirty-one million, eight hundred sixty thousand, four hundred sixty-eight".