2156896 has 24 divisors (see below), whose sum is σ = 4853520. Its totient is φ = 924288.

The previous prime is 2156879. The next prime is 2156897. The reversal of 2156896 is 6986512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4591 + ... + 5038.

It is an arithmetic number, because the mean of its divisors is an integer number (202230).

2^2156896 is an apocalyptic number.

It is an amenable number.

2156896 is an abundant number, since it is smaller than the sum of its proper divisors (2696624).

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

2156896 is an equidigital number, since it uses as much as digits as its factorization.

2156896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9646 (or 9638 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 2156896 is about 1468.6374637738. The cubic root of 2156896 is about 129.2041316689.

The spelling of 2156896 in words is "two million, one hundred fifty-six thousand, eight hundred ninety-six".