2144902188 has 48 divisors (see below), whose sum is σ = 5879736576. Its totient is φ = 599972160.

The previous prime is 2144902181. The next prime is 2144902231. The reversal of 2144902188 is 8812094412.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (2144902181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 623256 + ... + 626687.

It is an arithmetic number, because the mean of its divisors is an integer number (122494512).

Almost surely, 2^2144902188 is an apocalyptic number.

It is an amenable number.

2144902188 is an abundant number, since it is smaller than the sum of its proper divisors (3734834388).

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

2144902188 is a wasteful number, since it uses less digits than its factorization.

2144902188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249974 (or 1249972 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 2144902188 is about 46313.0887331001. The cubic root of 2144902188 is about 1289.6419870631.

The spelling of 2144902188 in words is "two billion, one hundred forty-four million, nine hundred two thousand, one hundred eighty-eight".