634464 has 36 divisors (see below), whose sum is σ = 1805076. Its totient is φ = 211392.

The previous prime is 634441. The next prime is 634471. The reversal of 634464 is 464436.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 814 + ... + 1389.

It is an arithmetic number, because the mean of its divisors is an integer number (50141).

2⁶³⁴⁴⁶⁴ is an apocalyptic number.

It is an amenable number.

634464 is an abundant number, since it is smaller than the sum of its proper divisors (1170612).

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

634464 is a wasteful number, since it uses less digits than its factorization.

634464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219 (or 2208 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 634464 is about 796.5324852133. The cubic root of 634464 is about 85.9281895588.

The spelling of 634464 in words is "six hundred thirty-four thousand, four hundred sixty-four".