315050220 has 72 divisors (see below), whose sum is σ = 964987296. Its totient is φ = 83192832.

The previous prime is 315050213. The next prime is 315050231. The reversal of 315050220 is 22050513.

It is a happy number.

It is a super-2 number, since 2×315050220² = 198513282244096800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 315050193 and 315050202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10044 + ... + 27036.

Almost surely, 2^315050220 is an apocalyptic number.

315050220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315050220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (482493648).

315050220 is an abundant number, since it is smaller than the sum of its proper divisors (649937076).

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

315050220 is a wasteful number, since it uses less digits than its factorization.

315050220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17111 (or 17106 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 315050220 is about 17749.6540811363. The cubic root of 315050220 is about 680.4453685635.

The spelling of 315050220 in words is "three hundred fifteen million, fifty thousand, two hundred twenty".