312090016 has 36 divisors (see below), whose sum is σ = 714745458. Its totient is φ = 133752192.

The previous prime is 312089977. The next prime is 312090041. The reversal of 312090016 is 610090213.

It can be written as a sum of positive squares in only one way, i.e., 163737616 + 148352400 = 12796^2 + 12180^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97951 + ... + 101086.

Almost surely, 2^312090016 is an apocalyptic number.

It is an amenable number.

312090016 is an abundant number, since it is smaller than the sum of its proper divisors (402655442).

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

312090016 is a wasteful number, since it uses less digits than its factorization.

312090016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199061 (or 199046 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 312090016 is about 17666.0696251317. The cubic root of 312090016 is about 678.3075095294.

The spelling of 312090016 in words is "three hundred twelve million, ninety thousand, sixteen".