634614738 has 32 divisors (see below), whose sum is σ = 1296691200. Its totient is φ = 206994576.

The previous prime is 634614737. The next prime is 634614751. The reversal of 634614738 is 837416436.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 634614738.

It is not an unprimeable number, because it can be changed into a prime (634614731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74923 + ... + 82961.

It is an arithmetic number, because the mean of its divisors is an integer number (40521600).

Almost surely, 2^634614738 is an apocalyptic number.

634614738 is an abundant number, since it is smaller than the sum of its proper divisors (662076462).

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

634614738 is a wasteful number, since it uses less digits than its factorization.

634614738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8326.

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

The square root of 634614738 is about 25191.5608488240. The cubic root of 634614738 is about 859.3499405197.

The spelling of 634614738 in words is "six hundred thirty-four million, six hundred fourteen thousand, seven hundred thirty-eight".