215150320 has 160 divisors (see below), whose sum is σ = 636387840. Its totient is φ = 65694720.

The previous prime is 215150297. The next prime is 215150347. The reversal of 215150320 is 23051512.

It is a super-2 number, since 2×215150320² = 92579320392204800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 326151 + ... + 326809.

It is an arithmetic number, because the mean of its divisors is an integer number (3977424).

Almost surely, 2^215150320 is an apocalyptic number.

215150320 is a gapful number since it is divisible by the number (20) 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 215150320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318193920).

215150320 is an abundant number, since it is smaller than the sum of its proper divisors (421237520).

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

215150320 is a wasteful number, since it uses less digits than its factorization.

215150320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 215150320 is about 14668.0032724294. The cubic root of 215150320 is about 599.2122253972.

The spelling of 215150320 in words is "two hundred fifteen million, one hundred fifty thousand, three hundred twenty".