631614020 has 24 divisors (see below), whose sum is σ = 1358742168. Its totient is φ = 246483200.

The previous prime is 631614007. The next prime is 631614037. The reversal of 631614020 is 20416136.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 68690944 + 562923076 = 8288^2 + 23726^2 .

It is an unprimeable number.

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, 384311 + ... + 385950.

It is an arithmetic number, because the mean of its divisors is an integer number (56614257).

Almost surely, 2^631614020 is an apocalyptic number.

It is an amenable number.

631614020 is an abundant number, since it is smaller than the sum of its proper divisors (727128148).

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

631614020 is a wasteful number, since it uses less digits than its factorization.

631614020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770311 (or 770309 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 631614020 is about 25131.9322774832. The cubic root of 631614020 is about 857.9933474453.

The spelling of 631614020 in words is "six hundred thirty-one million, six hundred fourteen thousand, twenty".