215072880 has 160 divisors (see below), whose sum is σ = 745452288. Its totient is φ = 50841600.

The previous prime is 215072873. The next prime is 215072929. The reversal of 215072880 is 88270512.

It is a super-2 number, since 2×215072880² = 92512687422988800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107247 + ... + 109233.

Almost surely, 2^215072880 is an apocalyptic number.

215072880 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 215072880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372726144).

215072880 is an abundant number, since it is smaller than the sum of its proper divisors (530379408).

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

215072880 is a wasteful number, since it uses less digits than its factorization.

215072880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055 (or 2049 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 215072880 is about 14665.3632754187. The cubic root of 215072880 is about 599.1403244070.

The spelling of 215072880 in words is "two hundred fifteen million, seventy-two thousand, eight hundred eighty".