216880832 has 56 divisors (see below), whose sum is σ = 520805664. Its totient is φ = 87478272.

The previous prime is 216880819. The next prime is 216880837. The reversal of 216880832 is 238088612.

216880832 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (216880837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6623 + ... + 21854.

Almost surely, 2^216880832 is an apocalyptic number.

It is an amenable number.

216880832 is an abundant number, since it is smaller than the sum of its proper divisors (303924832).

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

216880832 is a wasteful number, since it uses less digits than its factorization.

216880832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28513 (or 28503 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 216880832 is about 14726.8744817086. The cubic root of 216880832 is about 600.8144790580.

It can be divided in two parts, 216880 and 832, that added together give a palindrome (217712).

The spelling of 216880832 in words is "two hundred sixteen million, eight hundred eighty thousand, eight hundred thirty-two".