2149808 has 10 divisors (see below), whose sum is σ = 4165284. Its totient is φ = 1074896.

The previous prime is 2149789. The next prime is 2149813. The reversal of 2149808 is 8089412.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67166 + ... + 67197.

2^2149808 is an apocalyptic number.

It is an amenable number.

2149808 is a deficient number, since it is larger than the sum of its proper divisors (2015476).

2149808 is a wasteful number, since it uses less digits than its factorization.

2149808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134371 (or 134365 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 2149808 is about 1466.2223569432. Note that the first 3 decimals coincide. The cubic root of 2149808 is about 129.0624459798.

The spelling of 2149808 in words is "two million, one hundred forty-nine thousand, eight hundred eight".