2149868 has 12 divisors (see below), whose sum is σ = 4299792. Its totient is φ = 921360.

The previous prime is 2149867. The next prime is 2149877. The reversal of 2149868 is 8689412.

2149868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

2149868 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2149867) 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 3 ways as a sum of consecutive naturals, for example, 38363 + ... + 38418.

It is an arithmetic number, because the mean of its divisors is an integer number (358316).

2^2149868 is an apocalyptic number.

2149868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2149868 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2149868 is a wasteful number, since it uses less digits than its factorization.

2149868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76792 (or 76790 counting only the distinct ones).

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

The square root of 2149868 is about 1466.2428175442. The cubic root of 2149868 is about 129.0636466568.

The spelling of 2149868 in words is "two million, one hundred forty-nine thousand, eight hundred sixty-eight".