634516738 has 16 divisors (see below), whose sum is σ = 1032343704. Its totient is φ = 291312640.

The previous prime is 634516699. The next prime is 634516759. The reversal of 634516738 is 837615436.

It can be written as a sum of positive squares in 4 ways, for example, as 486334809 + 148181929 = 22053^2 + 12173^2 .

It is a super-2 number, since 2×634516738² = 805222981604321288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 634516694 and 634516703.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226195 + ... + 228982.

Almost surely, 2^634516738 is an apocalyptic number.

634516738 is a deficient number, since it is larger than the sum of its proper divisors (397826966).

634516738 is a wasteful number, since it uses less digits than its factorization.

634516738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455237.

The product of its digits is 362880, while the sum is 43.

The square root of 634516738 is about 25189.6156778939. The cubic root of 634516738 is about 859.3057033763.

The spelling of 634516738 in words is "six hundred thirty-four million, five hundred sixteen thousand, seven hundred thirty-eight".