215396120 has 32 divisors (see below), whose sum is σ = 513151200. Its totient is φ = 81090048.

The previous prime is 215396119. The next prime is 215396161. The reversal of 215396120 is 21693512.

It is a super-2 number, since 2×215396120² = 92790977022108800, 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 7 ways as a sum of consecutive naturals, for example, 157700 + ... + 159059.

It is an arithmetic number, because the mean of its divisors is an integer number (16035975).

Almost surely, 2^215396120 is an apocalyptic number.

215396120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215396120 is an abundant number, since it is smaller than the sum of its proper divisors (297755080).

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

215396120 is a wasteful number, since it uses less digits than its factorization.

215396120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316787 (or 316783 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 215396120 is about 14676.3796625735. The cubic root of 215396120 is about 599.4403299633.

The spelling of 215396120 in words is "two hundred fifteen million, three hundred ninety-six thousand, one hundred twenty".