8638132404 has 36 divisors (see below), whose sum is σ = 22154552672. Its totient is φ = 2617615440.

The previous prime is 8638132403. The next prime is 8638132409. The reversal of 8638132404 is 4042318368.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8638132403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2973112 + ... + 2976015.

Almost surely, 2^8638132404 is an apocalyptic number.

It is an amenable number.

8638132404 is an abundant number, since it is smaller than the sum of its proper divisors (13516420268).

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

8638132404 is a wasteful number, since it uses less digits than its factorization.

8638132404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5949156 (or 5949143 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 8638132404 is about 92941.5536990855. The cubic root of 8638132404 is about 2051.8232760876.

The spelling of 8638132404 in words is "eight billion, six hundred thirty-eight million, one hundred thirty-two thousand, four hundred four".