8749364220 has 72 divisors (see below), whose sum is σ = 27693652896. Its totient is φ = 2231720832.

The previous prime is 8749364209. The next prime is 8749364227. The reversal of 8749364220 is 224639478.

8749364220 is a `hidden beast` number, since 87 + 493 + 64 + 2 + 20 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8749364227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1052547 + ... + 1060826.

It is an arithmetic number, because the mean of its divisors is an integer number (384634068).

Almost surely, 2^8749364220 is an apocalyptic number.

It is an amenable number.

8749364220 is an abundant number, since it is smaller than the sum of its proper divisors (18944288676).

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

8749364220 is a wasteful number, since it uses less digits than its factorization.

8749364220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113411 (or 2113406 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 8749364220 is about 93538.0362205664. The cubic root of 8749364220 is about 2060.5927395379.

The spelling of 8749364220 in words is "eight billion, seven hundred forty-nine million, three hundred sixty-four thousand, two hundred twenty".