2189252164 has 24 divisors (see below), whose sum is σ = 4220870976. Its totient is φ = 985260000.

The previous prime is 2189252159. The next prime is 2189252167. The reversal of 2189252164 is 4612529812.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2189252167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241872 + ... + 250759.

It is an arithmetic number, because the mean of its divisors is an integer number (175869624).

Almost surely, 2^2189252164 is an apocalyptic number.

It is an amenable number.

2189252164 is a deficient number, since it is larger than the sum of its proper divisors (2031618812).

2189252164 is a wasteful number, since it uses less digits than its factorization.

2189252164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492747 (or 492745 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 2189252164 is about 46789.4450063259. The cubic root of 2189252164 is about 1298.4700272973.

The spelling of 2189252164 in words is "two billion, one hundred eighty-nine million, two hundred fifty-two thousand, one hundred sixty-four".