215952936 has 64 divisors (see below), whose sum is σ = 570196800. Its totient is φ = 67968000.

The previous prime is 215952901. The next prime is 215952941. The reversal of 215952936 is 639259512.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182266 + ... + 183446.

It is an arithmetic number, because the mean of its divisors is an integer number (8909325).

Almost surely, 2^215952936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215952936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285098400).

215952936 is an abundant number, since it is smaller than the sum of its proper divisors (354243864).

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

215952936 is a wasteful number, since it uses less digits than its factorization.

215952936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610 (or 1606 counting only the distinct ones).

The product of its digits is 145800, while the sum is 42.

The square root of 215952936 is about 14695.3372196762. The cubic root of 215952936 is about 599.9564190568.

It can be divided in two parts, 21595 and 2936, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 215952936 in words is "two hundred fifteen million, nine hundred fifty-two thousand, nine hundred thirty-six".