312255280 has 20 divisors (see below), whose sum is σ = 725993712. Its totient is φ = 124902080.

The previous prime is 312255241. The next prime is 312255283. The reversal of 312255280 is 82552213.

312255280 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (312255283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1951516 + ... + 1951675.

Almost surely, 2^312255280 is an apocalyptic number.

It is an amenable number.

312255280 is an abundant number, since it is smaller than the sum of its proper divisors (413738432).

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

312255280 is a wasteful number, since it uses less digits than its factorization.

312255280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3903204 (or 3903198 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 312255280 is about 17670.7464471652. The cubic root of 312255280 is about 678.4272186147.

The spelling of 312255280 in words is "three hundred twelve million, two hundred fifty-five thousand, two hundred eighty".