634400484 has 24 divisors (see below), whose sum is σ = 1494642240. Its totient is φ = 209413344.

The previous prime is 634400477. The next prime is 634400489. The reversal of 634400484 is 484004436.

It is not an unprimeable number, because it can be changed into a prime (634400489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255399 + ... + 257870.

It is an arithmetic number, because the mean of its divisors is an integer number (62276760).

Almost surely, 2^634400484 is an apocalyptic number.

It is an amenable number.

634400484 is an abundant number, since it is smaller than the sum of its proper divisors (860241756).

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

634400484 is a wasteful number, since it uses less digits than its factorization.

634400484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513379 (or 513377 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

The square root of 634400484 is about 25187.3079943054. The cubic root of 634400484 is about 859.2532204809.

The spelling of 634400484 in words is "six hundred thirty-four million, four hundred thousand, four hundred eighty-four".