2115616 has 24 divisors (see below), whose sum is σ = 4411260. Its totient is φ = 995328.

The previous prime is 2115571. The next prime is 2115629. The reversal of 2115616 is 6165112.

It can be written as a sum of positive squares in 2 ways, for example, as 1971216 + 144400 = 1404^2 + 380^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1401 + ... + 2488.

2^2115616 is an apocalyptic number.

It is an amenable number.

2115616 is an abundant number, since it is smaller than the sum of its proper divisors (2295644).

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

2115616 is a wasteful number, since it uses less digits than its factorization.

2115616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3916 (or 3908 counting only the distinct ones).

The product of its digits is 360, while the sum is 22.

The square root of 2115616 is about 1454.5157269689. The cubic root of 2115616 is about 128.3745539518.

The spelling of 2115616 in words is "two million, one hundred fifteen thousand, six hundred sixteen".