634495888 has 40 divisors (see below), whose sum is σ = 1330914816. Its totient is φ = 291292800.

The previous prime is 634495859. The next prime is 634495889. The reversal of 634495888 is 888594436.

It is not an unprimeable number, because it can be changed into a prime (634495889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31743 + ... + 47713.

Almost surely, 2^634495888 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 634495888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (665457408).

634495888 is an abundant number, since it is smaller than the sum of its proper divisors (696418928).

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

634495888 is a wasteful number, since it uses less digits than its factorization.

634495888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16183 (or 16177 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 55.

The square root of 634495888 is about 25189.2018134756. The cubic root of 634495888 is about 859.2962911107.

The spelling of 634495888 in words is "six hundred thirty-four million, four hundred ninety-five thousand, eight hundred eighty-eight".