315620228 has 48 divisors (see below), whose sum is σ = 703309824. Its totient is φ = 120347040.

The previous prime is 315620219. The next prime is 315620231. The reversal of 315620228 is 822026513.

It is a super-2 number, since 2×315620228² = 199232256645543968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 315620228.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3575 + ... + 25377.

It is an arithmetic number, because the mean of its divisors is an integer number (14652288).

Almost surely, 2^315620228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315620228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351654912).

315620228 is an abundant number, since it is smaller than the sum of its proper divisors (387689596).

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

315620228 is a wasteful number, since it uses less digits than its factorization.

315620228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21872 (or 21870 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 315620228 is about 17765.7037012329. The cubic root of 315620228 is about 680.8554890257.

The spelling of 315620228 in words is "three hundred fifteen million, six hundred twenty thousand, two hundred twenty-eight".