634372036 has 6 divisors (see below), whose sum is σ = 1110151070. Its totient is φ = 317186016.

The previous prime is 634372033. The next prime is 634372069. The reversal of 634372036 is 630273436.

It can be written as a sum of positive squares in only one way, i.e., 585930436 + 48441600 = 24206^2 + 6960^2 .

It is a junction number, because it is equal to n+sod(n) for n = 634371992 and 634372010.

It is not an unprimeable number, because it can be changed into a prime (634372033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79296501 + ... + 79296508.

Almost surely, 2^634372036 is an apocalyptic number.

It is an amenable number.

634372036 is a deficient number, since it is larger than the sum of its proper divisors (475779034).

634372036 is a wasteful number, since it uses less digits than its factorization.

634372036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158593013 (or 158593011 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 34.

The square root of 634372036 is about 25186.7432591036. The cubic root of 634372036 is about 859.2403766482.

The spelling of 634372036 in words is "six hundred thirty-four million, three hundred seventy-two thousand, thirty-six".