2149688 has 16 divisors (see below), whose sum is σ = 4047000. Its totient is φ = 1070496.

The previous prime is 2149687. The next prime is 2149703. The reversal of 2149688 is 8869412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2678 + ... + 3386.

2^2149688 is an apocalyptic number.

It is an amenable number.

2149688 is a deficient number, since it is larger than the sum of its proper divisors (1897312).

2149688 is a wasteful number, since it uses less digits than its factorization.

2149688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094 (or 1090 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 2149688 is about 1466.1814348845. The cubic root of 2149688 is about 129.0600445589.

The spelling of 2149688 in words is "two million, one hundred forty-nine thousand, six hundred eighty-eight".