634148736 has 64 divisors (see below), whose sum is σ = 1814045520. Its totient is φ = 195121152.

The previous prime is 634148707. The next prime is 634148761. The reversal of 634148736 is 637841436.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

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, 58525 + ... + 68508.

Almost surely, 2^634148736 is an apocalyptic number.

It is an amenable number.

634148736 is an abundant number, since it is smaller than the sum of its proper divisors (1179896784).

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

634148736 is a wasteful number, since it uses less digits than its factorization.

634148736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127063 (or 127051 counting only the distinct ones).

The product of its digits is 290304, while the sum is 42.

The square root of 634148736 is about 25182.3099814135. The cubic root of 634148736 is about 859.1395468079.

The spelling of 634148736 in words is "six hundred thirty-four million, one hundred forty-eight thousand, seven hundred thirty-six".