2115844 has 12 divisors (see below), whose sum is σ = 3716944. Its totient is φ = 1053864.

The previous prime is 2115829. The next prime is 2115847. The reversal of 2115844 is 4485112.

It is a hoax number, since the sum of its digits (25) 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 (2115847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367 + ... + 2089.

2^2115844 is an apocalyptic number.

It is an amenable number.

2115844 is a deficient number, since it is larger than the sum of its proper divisors (1601100).

2115844 is a wasteful number, since it uses less digits than its factorization.

2115844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034 (or 2032 counting only the distinct ones).

The product of its digits is 1280, while the sum is 25.

The square root of 2115844 is about 1454.5941014592. The cubic root of 2115844 is about 128.3791654293.

The spelling of 2115844 in words is "two million, one hundred fifteen thousand, eight hundred forty-four".