2642156 has 36 divisors (see below), whose sum is σ = 5228496. Its totient is φ = 1166880.

The previous prime is 2642149. The next prime is 2642173. The reversal of 2642156 is 6512462.

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, 25601 + ... + 25703.

It is an arithmetic number, because the mean of its divisors is an integer number (145236).

2^2642156 is an apocalyptic number.

It is an amenable number.

2642156 is a deficient number, since it is larger than the sum of its proper divisors (2586340).

2642156 is a wasteful number, since it uses less digits than its factorization.

2642156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 169 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 2642156 is about 1625.4710086618. The cubic root of 2642156 is about 138.2460777783.

The spelling of 2642156 in words is "two million, six hundred forty-two thousand, one hundred fifty-six".