215882000 has 40 divisors (see below), whose sum is σ = 522007512. Its totient is φ = 86352000.

The previous prime is 215881987. The next prime is 215882027. The reversal of 215882000 is 288512.

It can be written as a sum of positive squares in 4 ways, for example, as 262144 + 215619856 = 512^2 + 14684^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 51971 + ... + 55970.

Almost surely, 2^215882000 is an apocalyptic number.

215882000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215882000 is an abundant number, since it is smaller than the sum of its proper divisors (306125512).

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

215882000 is a wasteful number, since it uses less digits than its factorization.

215882000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107964 (or 107948 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 215882000 is about 14692.9234667577. The cubic root of 215882000 is about 599.8907208387.

The spelling of 215882000 in words is "two hundred fifteen million, eight hundred eighty-two thousand".