631054404 has 72 divisors (see below), whose sum is σ = 1672175232. Its totient is φ = 200280960.

The previous prime is 631054397. The next prime is 631054409. The reversal of 631054404 is 404450136.

It is not an unprimeable number, because it can be changed into a prime (631054409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191289 + ... + 194559.

It is an arithmetic number, because the mean of its divisors is an integer number (23224656).

Almost surely, 2^631054404 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 631054404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (836087616).

631054404 is an abundant number, since it is smaller than the sum of its proper divisors (1041120828).

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

631054404 is a wasteful number, since it uses less digits than its factorization.

631054404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3537 (or 3532 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 631054404 is about 25120.7962453422. The cubic root of 631054404 is about 857.7398758288.

The spelling of 631054404 in words is "six hundred thirty-one million, fifty-four thousand, four hundred four".