8622489420 has 384 divisors, whose sum is σ = 30075494400. Its totient is φ = 2040422400.

The previous prime is 8622489401. The next prime is 8622489433. The reversal of 8622489420 is 249842268.

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

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11667411 + ... + 11668149.

It is an arithmetic number, because the mean of its divisors is an integer number (78321600).

Almost surely, 2^8622489420 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 8622489420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15037747200).

8622489420 is an abundant number, since it is smaller than the sum of its proper divisors (21453004980).

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

8622489420 is a wasteful number, since it uses less digits than its factorization.

8622489420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 8622489420 is about 92857.3606129315. The cubic root of 8622489420 is about 2050.5839637174.

The spelling of 8622489420 in words is "eight billion, six hundred twenty-two million, four hundred eighty-nine thousand, four hundred twenty".