2115916 has 24 divisors (see below), whose sum is σ = 4253760. Its totient is φ = 910800.

The previous prime is 2115877. The next prime is 2115923. The reversal of 2115916 is 6195112.

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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430 + ... + 2101.

It is an arithmetic number, because the mean of its divisors is an integer number (177240).

2^2115916 is an apocalyptic number.

It is an amenable number.

2115916 is an abundant number, since it is smaller than the sum of its proper divisors (2137844).

2115916 is a wasteful number, since it uses less digits than its factorization.

2115916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2565 (or 2563 counting only the distinct ones).

The product of its digits is 540, while the sum is 25.

The square root of 2115916 is about 1454.6188504210. The cubic root of 2115916 is about 128.3806216166.

The spelling of 2115916 in words is "two million, one hundred fifteen thousand, nine hundred sixteen".