31264480 has 48 divisors (see below), whose sum is σ = 79549344. Its totient is φ = 11543040.

The previous prime is 31264477. The next prime is 31264489. The reversal of 31264480 is 8446213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31264489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5436 + ... + 9595.

It is an arithmetic number, because the mean of its divisors is an integer number (1657278).

Almost surely, 2^31264480 is an apocalyptic number.

It is an amenable number.

31264480 is an abundant number, since it is smaller than the sum of its proper divisors (48284864).

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

31264480 is a wasteful number, since it uses less digits than its factorization.

31264480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15059 (or 15051 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 31264480 is about 5591.4649243289. The cubic root of 31264480 is about 315.0289047130.

The spelling of 31264480 in words is "thirty-one million, two hundred sixty-four thousand, four hundred eighty".