634864122 has 16 divisors (see below), whose sum is σ = 1410809280. Its totient is φ = 211621356.

The previous prime is 634864033. The next prime is 634864129. The reversal of 634864122 is 221468436.

634864122 is a `hidden beast` number, since 6 + 3 + 4 + 8 + 641 + 2 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (634864129) 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 7 ways as a sum of consecutive naturals, for example, 5878318 + ... + 5878425.

It is an arithmetic number, because the mean of its divisors is an integer number (88175580).

Almost surely, 2^634864122 is an apocalyptic number.

634864122 is an abundant number, since it is smaller than the sum of its proper divisors (775945158).

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

634864122 is a wasteful number, since it uses less digits than its factorization.

634864122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11756754 (or 11756748 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 634864122 is about 25196.5101154902. The cubic root of 634864122 is about 859.4624917768.

The spelling of 634864122 in words is "six hundred thirty-four million, eight hundred sixty-four thousand, one hundred twenty-two".