634144740 has 48 divisors (see below), whose sum is σ = 1836838080. Its totient is φ = 163273600.

The previous prime is 634144733. The next prime is 634144751. The reversal of 634144740 is 47441436.

634144740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180486 + ... + 183965.

It is an arithmetic number, because the mean of its divisors is an integer number (38267460).

Almost surely, 2^634144740 is an apocalyptic number.

634144740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

634144740 is an abundant number, since it is smaller than the sum of its proper divisors (1202693340).

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

634144740 is a wasteful number, since it uses less digits than its factorization.

634144740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364492 (or 364490 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 634144740 is about 25182.2306398778. The cubic root of 634144740 is about 859.1377422214.

The spelling of 634144740 in words is "six hundred thirty-four million, one hundred forty-four thousand, seven hundred forty".