8448656220 has 72 divisors (see below), whose sum is σ = 26320248864. Its totient is φ = 2192082048.

The previous prime is 8448656213. The next prime is 8448656231. The reversal of 8448656220 is 226568448.

8448656220 is a `hidden beast` number, since 8 + 4 + 4 + 86 + 562 + 2 + 0 = 666.

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

It is a congruent number.

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, 627624 + ... + 640943.

It is an arithmetic number, because the mean of its divisors is an integer number (365559012).

Almost surely, 2^8448656220 is an apocalyptic number.

It is an amenable number.

8448656220 is an abundant number, since it is smaller than the sum of its proper divisors (17871592644).

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

8448656220 is a wasteful number, since it uses less digits than its factorization.

8448656220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268619 (or 1268614 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The square root of 8448656220 is about 91916.5720640190. The cubic root of 8448656220 is about 2036.7100806874.

The spelling of 8448656220 in words is "eight billion, four hundred forty-eight million, six hundred fifty-six thousand, two hundred twenty".