2150856 has 24 divisors (see below), whose sum is σ = 5825430. Its totient is φ = 716928.

The previous prime is 2150849. The next prime is 2150867. The reversal of 2150856 is 6580512.

It can be written as a sum of positive squares in only one way, i.e., 1285956 + 864900 = 1134^2 + 930^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14865 + ... + 15008.

2^2150856 is an apocalyptic number.

It is an amenable number.

2150856 is an abundant number, since it is smaller than the sum of its proper divisors (3674574).

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

2150856 is a wasteful number, since it uses less digits than its factorization.

2150856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29885 (or 29878 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 2150856 is about 1466.5796943910. The cubic root of 2150856 is about 129.0834145920.

The spelling of 2150856 in words is "two million, one hundred fifty thousand, eight hundred fifty-six".