215162880 has 224 divisors, whose sum is σ = 736055424. Its totient is φ = 53477376.

The previous prime is 215162879. The next prime is 215162887. The reversal of 215162880 is 88261512.

It is not an unprimeable number, because it can be changed into a prime (215162887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2088909 + ... + 2089011.

Almost surely, 2^215162880 is an apocalyptic number.

215162880 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 215162880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368027712).

215162880 is an abundant number, since it is smaller than the sum of its proper divisors (520892544).

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

215162880 is a wasteful number, since it uses less digits than its factorization.

215162880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 215162880 is about 14668.4314089817. The cubic root of 215162880 is about 599.2238853986.

The spelling of 215162880 in words is "two hundred fifteen million, one hundred sixty-two thousand, eight hundred eighty".