634502432 has 24 divisors (see below), whose sum is σ = 1272749436. Its totient is φ = 311264512.

The previous prime is 634502431. The next prime is 634502443. The reversal of 634502432 is 234205436.

It can be written as a sum of positive squares in 2 ways, for example, as 587771536 + 46730896 = 24244^2 + 6836^2 .

It is a junction number, because it is equal to n+sod(n) for n = 634502395 and 634502404.

It is not an unprimeable number, because it can be changed into a prime (634502431) 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, 185363 + ... + 188754.

Almost surely, 2^634502432 is an apocalyptic number.

It is an amenable number.

634502432 is an abundant number, since it is smaller than the sum of its proper divisors (638247004).

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

634502432 is a wasteful number, since it uses less digits than its factorization.

634502432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374180 (or 374172 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 634502432 is about 25189.3317100712. The cubic root of 634502432 is about 859.2992452752.

Adding to 634502432 its reverse (234205436), we get a palindrome (868707868).

The spelling of 634502432 in words is "six hundred thirty-four million, five hundred two thousand, four hundred thirty-two".