631022680 has 32 divisors (see below), whose sum is σ = 1494529200. Its totient is φ = 239124096.

The previous prime is 631022671. The next prime is 631022681. The reversal of 631022680 is 86220136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631022681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414387 + ... + 415906.

Almost surely, 2^631022680 is an apocalyptic number.

It is an amenable number.

631022680 is an abundant number, since it is smaller than the sum of its proper divisors (863506520).

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

631022680 is a wasteful number, since it uses less digits than its factorization.

631022680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830323 (or 830319 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 631022680 is about 25120.1648083766. The cubic root of 631022680 is about 857.7255023212.

The spelling of 631022680 in words is "six hundred thirty-one million, twenty-two thousand, six hundred eighty".