2189944192 has 32 divisors (see below), whose sum is σ = 4379435280. Its totient is φ = 1090791936.

The previous prime is 2189944177. The next prime is 2189944213. The reversal of 2189944192 is 2914499812.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1138 + ... + 66190.

Almost surely, 2^2189944192 is an apocalyptic number.

It is an amenable number.

2189944192 is a deficient number, since it is larger than the sum of its proper divisors (2189491088).

2189944192 is an equidigital number, since it uses as much as digits as its factorization.

2189944192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65330 (or 65318 counting only the distinct ones).

The product of its digits is 373248, while the sum is 49.

The square root of 2189944192 is about 46796.8395514056. The cubic root of 2189944192 is about 1298.6068294081.

The spelling of 2189944192 in words is "two billion, one hundred eighty-nine million, nine hundred forty-four thousand, one hundred ninety-two".