2189139312 has 40 divisors (see below), whose sum is σ = 5657245056. Its totient is φ = 729459136.

The previous prime is 2189139311. The next prime is 2189139341. The reversal of 2189139312 is 2139319812.

2189139312 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189139311) 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, 174763 + ... + 186869.

Almost surely, 2^2189139312 is an apocalyptic number.

It is an amenable number.

2189139312 is an abundant number, since it is smaller than the sum of its proper divisors (3468105744).

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

2189139312 is a wasteful number, since it uses less digits than its factorization.

2189139312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15885 (or 15879 counting only the distinct ones).

The product of its digits is 23328, while the sum is 39.

The square root of 2189139312 is about 46788.2390350396. The cubic root of 2189139312 is about 1298.4477156513.

The spelling of 2189139312 in words is "two billion, one hundred eighty-nine million, one hundred thirty-nine thousand, three hundred twelve".