634400480 has 48 divisors (see below), whose sum is σ = 1712884320. Its totient is φ = 217508352.

The previous prime is 634400477. The next prime is 634400489. The reversal of 634400480 is 84004436.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282095 + ... + 284334.

It is an arithmetic number, because the mean of its divisors is an integer number (35685090).

Almost surely, 2^634400480 is an apocalyptic number.

It is an amenable number.

634400480 is an abundant number, since it is smaller than the sum of its proper divisors (1078483840).

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

634400480 is a wasteful number, since it uses less digits than its factorization.

634400480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566451 (or 566443 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 634400480 is about 25187.3079149003. The cubic root of 634400480 is about 859.2532186750.

The spelling of 634400480 in words is "six hundred thirty-four million, four hundred thousand, four hundred eighty".