631622004 has 24 divisors (see below), whose sum is σ = 1587153120. Its totient is φ = 194345184.

The previous prime is 631621981. The next prime is 631622009. The reversal of 631622004 is 400226136.

631622004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631622009) 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, 2024274 + ... + 2024585.

It is an arithmetic number, because the mean of its divisors is an integer number (66131380).

Almost surely, 2^631622004 is an apocalyptic number.

It is an amenable number.

631622004 is an abundant number, since it is smaller than the sum of its proper divisors (955531116).

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

631622004 is a wasteful number, since it uses less digits than its factorization.

631622004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4048879 (or 4048877 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 631622004 is about 25132.0911187271. The cubic root of 631622004 is about 857.9969626226.

The spelling of 631622004 in words is "six hundred thirty-one million, six hundred twenty-two thousand, four".