631938882 has 16 divisors (see below), whose sum is σ = 1265689152. Its totient is φ = 210344400.

The previous prime is 631938877. The next prime is 631938883. The reversal of 631938882 is 288839136.

631938882 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (631938883) 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, 70918 + ... + 79329.

It is an arithmetic number, because the mean of its divisors is an integer number (79105572).

Almost surely, 2^631938882 is an apocalyptic number.

631938882 is an abundant number, since it is smaller than the sum of its proper divisors (633750270).

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

631938882 is a wasteful number, since it uses less digits than its factorization.

631938882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150953.

The product of its digits is 497664, while the sum is 48.

The square root of 631938882 is about 25138.3945788111. The cubic root of 631938882 is about 858.1404212661.

The spelling of 631938882 in words is "six hundred thirty-one million, nine hundred thirty-eight thousand, eight hundred eighty-two".