31448960 has 32 divisors (see below), whose sum is σ = 75184200. Its totient is φ = 12579328.

The previous prime is 31448909. The next prime is 31448987. The reversal of 31448960 is 6984413.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 31448960.

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, 23930 + ... + 25209.

Almost surely, 2^31448960 is an apocalyptic number.

It is an amenable number.

31448960 is an abundant number, since it is smaller than the sum of its proper divisors (43735240).

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

31448960 is an equidigital number, since it uses as much as digits as its factorization.

31448960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49158 (or 49146 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 31448960 is about 5607.9372321737. The cubic root of 31448960 is about 315.6473125421.

The spelling of 31448960 in words is "thirty-one million, four hundred forty-eight thousand, nine hundred sixty".