8229644420 has 48 divisors (see below), whose sum is σ = 18236668800. Its totient is φ = 3110918400.

The previous prime is 8229644411. The next prime is 8229644497. The reversal of 8229644420 is 244469228.

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, 128945 + ... + 181895.

It is an arithmetic number, because the mean of its divisors is an integer number (379930600).

Almost surely, 2^8229644420 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 8229644420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9118334400).

8229644420 is an abundant number, since it is smaller than the sum of its proper divisors (10007024380).

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

8229644420 is a wasteful number, since it uses less digits than its factorization.

8229644420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53388 (or 53386 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The square root of 8229644420 is about 90717.3876387542. The cubic root of 8229644420 is about 2018.9567874132.

The spelling of 8229644420 in words is "eight billion, two hundred twenty-nine million, six hundred forty-four thousand, four hundred twenty".