31104960 has 56 divisors (see below), whose sum is σ = 98761296. Its totient is φ = 8294400.

The previous prime is 31104889. The next prime is 31104961. The reversal of 31104960 is 6940113.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 31104960.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31104961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15241 + ... + 17160.

Almost surely, 2^31104960 is an apocalyptic number.

31104960 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31104960 is an abundant number, since it is smaller than the sum of its proper divisors (67656336).

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

31104960 is a wasteful number, since it uses less digits than its factorization.

31104960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32421 (or 32411 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 31104960 is about 5577.1820841712. The cubic root of 31104960 is about 314.4922027550.

The spelling of 31104960 in words is "thirty-one million, one hundred four thousand, nine hundred sixty".