2189598120 has 48 divisors (see below), whose sum is σ = 7116195060. Its totient is φ = 583892736.

The previous prime is 2189598101. The next prime is 2189598127. The reversal of 2189598120 is 218959812.

It can be written as a sum of positive squares in 2 ways, for example, as 2136103524 + 53494596 = 46218^2 + 7314^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2189598127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3040749 + ... + 3041468.

Almost surely, 2^2189598120 is an apocalyptic number.

2189598120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2189598120 is an abundant number, since it is smaller than the sum of its proper divisors (4926596940).

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

2189598120 is a wasteful number, since it uses less digits than its factorization.

2189598120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6082234 (or 6082227 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 2189598120 is about 46793.1418051834. The cubic root of 2189598120 is about 1298.5384204901.

The spelling of 2189598120 in words is "two billion, one hundred eighty-nine million, five hundred ninety-eight thousand, one hundred twenty".