2239544189 has 12 divisors (see below), whose sum is σ = 2348959008. Its totient is φ = 2134040160.

The previous prime is 2239544173. The next prime is 2239544213. The reversal of 2239544189 is 9814459322.

It is a happy number.

It is not a de Polignac number, because 2239544189 - 2⁴ = 2239544173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2239544159) 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, 56792 + ... + 87774.

It is an arithmetic number, because the mean of its divisors is an integer number (195746584).

Almost surely, 2^2239544189 is an apocalyptic number.

It is an amenable number.

2239544189 is a deficient number, since it is larger than the sum of its proper divisors (109414819).

2239544189 is an equidigital number, since it uses as much as digits as its factorization.

2239544189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31108 (or 31067 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 2239544189 is about 47323.8226372300. The cubic root of 2239544189 is about 1308.3377687689.

The spelling of 2239544189 in words is "two billion, two hundred thirty-nine million, five hundred forty-four thousand, one hundred eighty-nine".