2149354188 has 36 divisors (see below), whose sum is σ = 5525181480. Its totient is φ = 704307456.

The previous prime is 2149354187. The next prime is 2149354199. The reversal of 2149354188 is 8814539412.

2149354188 is a `hidden beast` number, since 2 + 14 + 93 + 541 + 8 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (2149354187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 503845 + ... + 508092.

Almost surely, 2^2149354188 is an apocalyptic number.

It is an amenable number.

2149354188 is an abundant number, since it is smaller than the sum of its proper divisors (3375827292).

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

2149354188 is a wasteful number, since it uses less digits than its factorization.

2149354188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012006 (or 1012001 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 2149354188 is about 46361.1279845519. The cubic root of 2149354188 is about 1290.5336389612.

The spelling of 2149354188 in words is "two billion, one hundred forty-nine million, three hundred fifty-four thousand, one hundred eighty-eight".