2215896 has 32 divisors (see below), whose sum is σ = 5591040. Its totient is φ = 731808.

The previous prime is 2215867. The next prime is 2215901. The reversal of 2215896 is 6985122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2685 + ... + 3411.

It is an arithmetic number, because the mean of its divisors is an integer number (174720).

2^2215896 is an apocalyptic number.

It is an amenable number.

2215896 is an abundant number, since it is smaller than the sum of its proper divisors (3375144).

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

2215896 is a wasteful number, since it uses less digits than its factorization.

2215896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863 (or 859 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 2215896 is about 1488.5885932654. The cubic root of 2215896 is about 130.3716387315.

The spelling of 2215896 in words is "two million, two hundred fifteen thousand, eight hundred ninety-six".