634357140 has 48 divisors (see below), whose sum is σ = 1791937728. Its totient is φ = 167663104.

The previous prime is 634357127. The next prime is 634357147. The reversal of 634357140 is 41753436.

634357140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634357147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40002 + ... + 53561.

It is an arithmetic number, because the mean of its divisors is an integer number (37332036).

Almost surely, 2^634357140 is an apocalyptic number.

634357140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

634357140 is an abundant number, since it is smaller than the sum of its proper divisors (1157580588).

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

634357140 is a wasteful number, since it uses less digits than its factorization.

634357140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93688 (or 93686 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 634357140 is about 25186.4475462499. The cubic root of 634357140 is about 859.2336511811.

The spelling of 634357140 in words is "six hundred thirty-four million, three hundred fifty-seven thousand, one hundred forty".