8425922220 has 72 divisors (see below), whose sum is σ = 25613615664. Its totient is φ = 2242078848.

The previous prime is 8425922203. The next prime is 8425922237. The reversal of 8425922220 is 222295248.

8425922220 is a `hidden beast` number, since 8 + 42 + 592 + 2 + 2 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (8425922203) and next prime (8425922237).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33942 + ... + 134178.

It is an arithmetic number, because the mean of its divisors is an integer number (355744662).

Almost surely, 2^8425922220 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 8425922220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12806807832).

8425922220 is an abundant number, since it is smaller than the sum of its proper divisors (17187693444).

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

8425922220 is a wasteful number, since it uses less digits than its factorization.

8425922220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100719 (or 100714 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 8425922220 is about 91792.8222684105. The cubic root of 8425922220 is about 2034.8816179145.

The spelling of 8425922220 in words is "eight billion, four hundred twenty-five million, nine hundred twenty-two thousand, two hundred twenty".