8420810436 has 48 divisors (see below), whose sum is σ = 21847728000. Its totient is φ = 2804880096.

The previous prime is 8420810399. The next prime is 8420810467. The reversal of 8420810436 is 6340180248.

8420810436 is a `hidden beast` number, since 8 + 4 + 208 + 10 + 436 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 8420810436.

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, 123226 + ... + 178958.

It is an arithmetic number, because the mean of its divisors is an integer number (455161000).

Almost surely, 2^8420810436 is an apocalyptic number.

It is an amenable number.

8420810436 is an abundant number, since it is smaller than the sum of its proper divisors (13426917564).

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

8420810436 is a wasteful number, since it uses less digits than its factorization.

8420810436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57145 (or 57137 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 8420810436 is about 91764.9739061697. The cubic root of 8420810436 is about 2034.4700317305.

The spelling of 8420810436 in words is "eight billion, four hundred twenty million, eight hundred ten thousand, four hundred thirty-six".