632445636 has 12 divisors (see below), whose sum is σ = 1475706512. Its totient is φ = 210815208.

The previous prime is 632445613. The next prime is 632445643. The reversal of 632445636 is 636544236.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 632445594 and 632445603.

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, 26351890 + ... + 26351913.

Almost surely, 2^632445636 is an apocalyptic number.

It is an amenable number.

632445636 is an abundant number, since it is smaller than the sum of its proper divisors (843260876).

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

632445636 is a wasteful number, since it uses less digits than its factorization.

632445636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52703810 (or 52703808 counting only the distinct ones).

The product of its digits is 311040, while the sum is 39.

The square root of 632445636 is about 25148.4718422412. The cubic root of 632445636 is about 858.3697419145.

The spelling of 632445636 in words is "six hundred thirty-two million, four hundred forty-five thousand, six hundred thirty-six".