632139216 has 160 divisors (see below), whose sum is σ = 1767744000. Its totient is φ = 194256384.

The previous prime is 632139161. The next prime is 632139229. The reversal of 632139216 is 612931236.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3531415 + ... + 3531593.

It is an arithmetic number, because the mean of its divisors is an integer number (11048400).

Almost surely, 2^632139216 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 632139216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (883872000).

632139216 is an abundant number, since it is smaller than the sum of its proper divisors (1135604784).

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

632139216 is a wasteful number, since it uses less digits than its factorization.

632139216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 315 counting only the distinct ones).

The product of its digits is 11664, while the sum is 33.

The square root of 632139216 is about 25142.3788850618. The cubic root of 632139216 is about 858.2310927665.

The spelling of 632139216 in words is "six hundred thirty-two million, one hundred thirty-nine thousand, two hundred sixteen".