2156882 has 24 divisors (see below), whose sum is σ = 4055436. Its totient is φ = 852768.

The previous prime is 2156879. The next prime is 2156897. The reversal of 2156882 is 2886512.

It can be written as a sum of positive squares in 2 ways, for example, as 2019241 + 137641 = 1421^2 + 371^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 428 + ... + 2120.

2^2156882 is an apocalyptic number.

2156882 is a deficient number, since it is larger than the sum of its proper divisors (1898554).

2156882 is a wasteful number, since it uses less digits than its factorization.

2156882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722 (or 1715 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 2156882 is about 1468.6326974434. The cubic root of 2156882 is about 129.2038521218.

The spelling of 2156882 in words is "two million, one hundred fifty-six thousand, eight hundred eighty-two".