632130644 has 12 divisors (see below), whose sum is σ = 1136126964. Its totient is φ = 307522944.

The previous prime is 632130637. The next prime is 632130649. The reversal of 632130644 is 446031236.

It can be written as a sum of positive squares in 2 ways, for example, as 558376900 + 73753744 = 23630^2 + 8588^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (632130649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2135429 + ... + 2135724.

It is an arithmetic number, because the mean of its divisors is an integer number (94677247).

Almost surely, 2^632130644 is an apocalyptic number.

It is an amenable number.

632130644 is a deficient number, since it is larger than the sum of its proper divisors (503996320).

632130644 is a wasteful number, since it uses less digits than its factorization.

632130644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4271194 (or 4271192 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 632130644 is about 25142.2084153322. The cubic root of 632130644 is about 858.2272134574.

The spelling of 632130644 in words is "six hundred thirty-two million, one hundred thirty thousand, six hundred forty-four".