8479380420 has 216 divisors, whose sum is σ = 31495464000. Its totient is φ = 1836100224.

The previous prime is 8479380419. The next prime is 8479380433. The reversal of 8479380420 is 240839748.

8479380420 is a `hidden beast` number, since 84 + 79 + 3 + 80 + 420 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 in 71 ways as a sum of consecutive naturals, for example, 142281 + ... + 192879.

Almost surely, 2^8479380420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8479380420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15747732000).

8479380420 is an abundant number, since it is smaller than the sum of its proper divisors (23016083580).

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

8479380420 is a wasteful number, since it uses less digits than its factorization.

8479380420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50647 (or 50635 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 8479380420 is about 92083.5512998929. The cubic root of 8479380420 is about 2039.1759791920.

The spelling of 8479380420 in words is "eight billion, four hundred seventy-nine million, three hundred eighty thousand, four hundred twenty".