3638434708 has 6 divisors (see below), whose sum is σ = 6367260746. Its totient is φ = 1819217352.

The previous prime is 3638434703. The next prime is 3638434733. The reversal of 3638434708 is 8074348363.

It can be written as a sum of positive squares in only one way, i.e., 3012033924 + 626400784 = 54882^2 + 25028^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3638434703) 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 as a sum of consecutive naturals, namely, 454804335 + ... + 454804342.

Almost surely, 2^3638434708 is an apocalyptic number.

It is an amenable number.

3638434708 is a deficient number, since it is larger than the sum of its proper divisors (2728826038).

3638434708 is a wasteful number, since it uses less digits than its factorization.

3638434708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909608681 (or 909608679 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 46.

The square root of 3638434708 is about 60319.4388899632. The cubic root of 3638434708 is about 1538.0538056340.

The spelling of 3638434708 in words is "three billion, six hundred thirty-eight million, four hundred thirty-four thousand, seven hundred eight".