631279022 has 24 divisors (see below), whose sum is σ = 1086090768. Its totient is φ = 274466720.

The previous prime is 631278997. The next prime is 631279039. The reversal of 631279022 is 220972136.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 631279022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51143 + ... + 62274.

It is an arithmetic number, because the mean of its divisors is an integer number (45253782).

Almost surely, 2^631279022 is an apocalyptic number.

631279022 is a deficient number, since it is larger than the sum of its proper divisors (454811746).

631279022 is a wasteful number, since it uses less digits than its factorization.

631279022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113464 (or 113453 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 631279022 is about 25125.2666055507. The cubic root of 631279022 is about 857.8416319583.

The spelling of 631279022 in words is "six hundred thirty-one million, two hundred seventy-nine thousand, twenty-two".