634384 has 20 divisors (see below), whose sum is σ = 1269760. Its totient is φ = 306720.

The previous prime is 634373. The next prime is 634397. The reversal of 634384 is 483436.

634384 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144 + ... + 1135.

It is an arithmetic number, because the mean of its divisors is an integer number (63488).

2⁶³⁴³⁸⁴ is an apocalyptic number.

It is an amenable number.

634384 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

634384 is a wasteful number, since it uses less digits than its factorization.

634384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318 (or 1312 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 634384 is about 796.4822659670. The cubic root of 634384 is about 85.9245778256.

The spelling of 634384 in words is "six hundred thirty-four thousand, three hundred eighty-four".