631782492 has 96 divisors (see below), whose sum is σ = 1776950784. Its totient is φ = 172339200.

The previous prime is 631782479. The next prime is 631782497. The reversal of 631782492 is 294287136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631782497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45492 + ... + 57732.

It is an arithmetic number, because the mean of its divisors is an integer number (18509904).

Almost surely, 2^631782492 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 631782492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (888475392).

631782492 is an abundant number, since it is smaller than the sum of its proper divisors (1145168292).

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

631782492 is a wasteful number, since it uses less digits than its factorization.

631782492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12299 (or 12297 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 631782492 is about 25135.2838058376. The cubic root of 631782492 is about 858.0696255733.

The spelling of 631782492 in words is "six hundred thirty-one million, seven hundred eighty-two thousand, four hundred ninety-two".