315220992 has 44 divisors (see below), whose sum is σ = 840187056. Its totient is φ = 105072640.

The previous prime is 315220979. The next prime is 315220993. The reversal of 315220992 is 299022513.

It is not an unprimeable number, because it can be changed into a prime (315220993) 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, 48234 + ... + 54377.

Almost surely, 2^315220992 is an apocalyptic number.

315220992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

315220992 is an abundant number, since it is smaller than the sum of its proper divisors (524966064).

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

315220992 is a wasteful number, since it uses less digits than its factorization.

315220992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102634 (or 102616 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 315220992 is about 17754.4640020475. The cubic root of 315220992 is about 680.5682907940.

The spelling of 315220992 in words is "three hundred fifteen million, two hundred twenty thousand, nine hundred ninety-two".