631673232 has 80 divisors (see below), whose sum is σ = 1675702272. Its totient is φ = 204946560.

The previous prime is 631673227. The next prime is 631673249. The reversal of 631673232 is 232376136.

It is a super-2 number, since 2×631673232² = 798022144050651648, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 631673193 and 631673202.

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, 475353 + ... + 476679.

Almost surely, 2^631673232 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 631673232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (837851136).

631673232 is an abundant number, since it is smaller than the sum of its proper divisors (1044029040).

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

631673232 is a wasteful number, since it uses less digits than its factorization.

631673232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596 (or 1590 counting only the distinct ones).

The product of its digits is 27216, while the sum is 33.

The square root of 631673232 is about 25133.1102731039. The cubic root of 631673232 is about 858.0201580780.

The spelling of 631673232 in words is "six hundred thirty-one million, six hundred seventy-three thousand, two hundred thirty-two".