8454639380 has 48 divisors (see below), whose sum is σ = 20388231360. Its totient is φ = 2912601600.

The previous prime is 8454639377. The next prime is 8454639409. The reversal of 8454639380 is 839364548.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1007141 + ... + 1015500.

It is an arithmetic number, because the mean of its divisors is an integer number (424754820).

Almost surely, 2^8454639380 is an apocalyptic number.

It is an amenable number.

8454639380 is an abundant number, since it is smaller than the sum of its proper divisors (11933591980).

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

8454639380 is a wasteful number, since it uses less digits than its factorization.

8454639380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022680 (or 2022678 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 50.

The square root of 8454639380 is about 91949.1129919153. The cubic root of 8454639380 is about 2037.1907522674.

The spelling of 8454639380 in words is "eight billion, four hundred fifty-four million, six hundred thirty-nine thousand, three hundred eighty".