634343075240 has 64 divisors (see below), whose sum is σ = 1632848492160. Its totient is φ = 217264976640.

The previous prime is 634343075239. The next prime is 634343075279. The reversal of 634343075240 is 42570343436.

634343075240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×634343075240² (a number of 24 digits) contains 22 as substring.

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, 894707 + ... + 1438466.

It is an arithmetic number, because the mean of its divisors is an integer number (25513257690).

Almost surely, 2^634343075240 is an apocalyptic number.

It is an amenable number.

634343075240 is an abundant number, since it is smaller than the sum of its proper divisors (998505416920).

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

634343075240 is a wasteful number, since it uses less digits than its factorization.

634343075240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334162 (or 2334158 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 41.

The spelling of 634343075240 in words is "six hundred thirty-four billion, three hundred forty-three million, seventy-five thousand, two hundred forty".