634580 has 12 divisors (see below), whose sum is σ = 1332660. Its totient is φ = 253824.

The previous prime is 634577. The next prime is 634597. The reversal of 634580 is 85436.

It can be written as a sum of positive squares in 2 ways, for example, as 446224 + 188356 = 668^2 + 434^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15845 + ... + 15884.

It is an arithmetic number, because the mean of its divisors is an integer number (111055).

2⁶³⁴⁵⁸⁰ is an apocalyptic number.

It is an amenable number.

634580 is an abundant number, since it is smaller than the sum of its proper divisors (698080).

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

634580 is a wasteful number, since it uses less digits than its factorization.

634580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31738 (or 31736 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 634580 is about 796.6052974968. The cubic root of 634580 is about 85.9334260328.

The spelling of 634580 in words is "six hundred thirty-four thousand, five hundred eighty".