2189944304 has 20 divisors (see below), whose sum is σ = 4245008064. Its totient is φ = 1094458368.

The previous prime is 2189944261. The next prime is 2189944343. The reversal of 2189944304 is 4034499812.

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, 4304 + ... + 66320.

Almost surely, 2^2189944304 is an apocalyptic number.

It is an amenable number.

2189944304 is a deficient number, since it is larger than the sum of its proper divisors (2055063760).

2189944304 is a wasteful number, since it uses less digits than its factorization.

2189944304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64232 (or 64226 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 2189944304 is about 46796.8407480676. The cubic root of 2189944304 is about 1298.6068515463.

The spelling of 2189944304 in words is "two billion, one hundred eighty-nine million, nine hundred forty-four thousand, three hundred four".