432640632 has 32 divisors (see below), whose sum is σ = 1096422480. Its totient is φ = 142237440.

The previous prime is 432640597. The next prime is 432640669. The reversal of 432640632 is 236046234.

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 432640632.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121719 + ... + 125222.

Almost surely, 2^432640632 is an apocalyptic number.

It is an amenable number.

432640632 is an abundant number, since it is smaller than the sum of its proper divisors (663781848).

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

432640632 is a wasteful number, since it uses less digits than its factorization.

432640632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247023 (or 247019 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 432640632 is about 20800.0151923021. The cubic root of 432640632 is about 756.3261239584.

Adding to 432640632 its reverse (236046234), we get a palindrome (668686866).

The spelling of 432640632 in words is "four hundred thirty-two million, six hundred forty thousand, six hundred thirty-two".