315272220 has 24 divisors (see below), whose sum is σ = 882762384. Its totient is φ = 84072576.

The previous prime is 315272197. The next prime is 315272231. The reversal of 315272220 is 22272513.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2627209 + ... + 2627328.

It is an arithmetic number, because the mean of its divisors is an integer number (36781766).

Almost surely, 2^315272220 is an apocalyptic number.

315272220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

315272220 is an abundant number, since it is smaller than the sum of its proper divisors (567490164).

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

315272220 is a wasteful number, since it uses less digits than its factorization.

315272220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5254549 (or 5254547 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 315272220 is about 17755.9066228678. The cubic root of 315272220 is about 680.6051562152.

The spelling of 315272220 in words is "three hundred fifteen million, two hundred seventy-two thousand, two hundred twenty".