631584992 has 48 divisors (see below), whose sum is σ = 1277446464. Its totient is φ = 307200000.

The previous prime is 631584983. The next prime is 631585007. The reversal of 631584992 is 299485136.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840617 + ... + 841367.

It is an arithmetic number, because the mean of its divisors is an integer number (26613468).

Almost surely, 2^631584992 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 631584992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (638723232).

631584992 is an abundant number, since it is smaller than the sum of its proper divisors (645861472).

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

631584992 is a wasteful number, since it uses less digits than its factorization.

631584992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443 (or 1435 counting only the distinct ones).

The product of its digits is 466560, while the sum is 47.

The square root of 631584992 is about 25131.3547585481. The cubic root of 631584992 is about 857.9802032297.

The spelling of 631584992 in words is "six hundred thirty-one million, five hundred eighty-four thousand, nine hundred ninety-two".