312263560 has 32 divisors (see below), whose sum is σ = 802964160. Its totient is φ = 107061696.

The previous prime is 312263519. The next prime is 312263563. The reversal of 312263560 is 65362213.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (312263563) 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, 557334 + ... + 557893.

It is an arithmetic number, because the mean of its divisors is an integer number (25092630).

Almost surely, 2^312263560 is an apocalyptic number.

It is an amenable number.

312263560 is an abundant number, since it is smaller than the sum of its proper divisors (490700600).

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

312263560 is a wasteful number, since it uses less digits than its factorization.

312263560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115245 (or 1115241 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 312263560 is about 17670.9807311309. The cubic root of 312263560 is about 678.4332151268.

The spelling of 312263560 in words is "three hundred twelve million, two hundred sixty-three thousand, five hundred sixty".