634686496 has 48 divisors (see below), whose sum is σ = 1280240640. Its totient is φ = 309591040.

The previous prime is 634686463. The next prime is 634686527. The reversal of 634686496 is 694686436.

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 7 ways as a sum of consecutive naturals, for example, 719976 + ... + 720856.

It is an arithmetic number, because the mean of its divisors is an integer number (26671680).

Almost surely, 2^634686496 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 634686496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (640120320).

634686496 is an abundant number, since it is smaller than the sum of its proper divisors (645554144).

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

634686496 is a wasteful number, since it uses less digits than its factorization.

634686496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417 (or 1409 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 52.

The square root of 634686496 is about 25192.9850553681. The cubic root of 634686496 is about 859.3823291514.

The spelling of 634686496 in words is "six hundred thirty-four million, six hundred eighty-six thousand, four hundred ninety-six".