631840372 has 12 divisors (see below), whose sum is σ = 1106074816. Its totient is φ = 315819000.

The previous prime is 631840369. The next prime is 631840387. The reversal of 631840372 is 273048136.

It is a happy number.

631840372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10254 + ... + 36997.

Almost surely, 2^631840372 is an apocalyptic number.

It is an amenable number.

631840372 is a deficient number, since it is larger than the sum of its proper divisors (474234444).

631840372 is a wasteful number, since it uses less digits than its factorization.

631840372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50598 (or 50596 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 631840372 is about 25136.4351490023. The cubic root of 631840372 is about 858.0958284485.

The spelling of 631840372 in words is "six hundred thirty-one million, eight hundred forty thousand, three hundred seventy-two".