312016428 has 48 divisors (see below), whose sum is σ = 827756160. Its totient is φ = 101585232.

The previous prime is 312016417. The next prime is 312016447. The reversal of 312016428 is 824610213.

312016428 is a `hidden beast` number, since 3 + 12 + 0 + 1 + 642 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28950 + ... + 38237.

It is an arithmetic number, because the mean of its divisors is an integer number (17244920).

Almost surely, 2^312016428 is an apocalyptic number.

It is an amenable number.

312016428 is an abundant number, since it is smaller than the sum of its proper divisors (515739732).

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

312016428 is a wasteful number, since it uses less digits than its factorization.

312016428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67243 (or 67235 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 312016428 is about 17663.9867527124. The cubic root of 312016428 is about 678.2541924156.

The spelling of 312016428 in words is "three hundred twelve million, sixteen thousand, four hundred twenty-eight".