634704400 has 120 divisors (see below), whose sum is σ = 1689115104. Its totient is φ = 227251200.

The previous prime is 634704397. The next prime is 634704409. The reversal of 634704400 is 4407436.

It is not an unprimeable number, because it can be changed into a prime (634704409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 293724 + ... + 295876.

Almost surely, 2^634704400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 634704400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (844557552).

634704400 is an abundant number, since it is smaller than the sum of its proper divisors (1054410704).

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

634704400 is a wasteful number, since it uses less digits than its factorization.

634704400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2249 (or 2238 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 634704400 is about 25193.3403898729. The cubic root of 634704400 is about 859.3904099055.

The spelling of 634704400 in words is "six hundred thirty-four million, seven hundred four thousand, four hundred".