8449432368 has 40 divisors (see below), whose sum is σ = 23506755888. Its totient is φ = 2599825152.

The previous prime is 8449432349. The next prime is 8449432391. The reversal of 8449432368 is 8632349448.

It is a self number, because there is not a number n which added to its sum of digits gives 8449432368.

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, 6769755 + ... + 6771002.

Almost surely, 2^8449432368 is an apocalyptic number.

It is an amenable number.

8449432368 is an abundant number, since it is smaller than the sum of its proper divisors (15057323520).

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

8449432368 is a wasteful number, since it uses less digits than its factorization.

8449432368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13540781 (or 13540775 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 51.

The square root of 8449432368 is about 91920.7939913489. The cubic root of 8449432368 is about 2036.7724472149.

The spelling of 8449432368 in words is "eight billion, four hundred forty-nine million, four hundred thirty-two thousand, three hundred sixty-eight".