2156232 has 32 divisors (see below), whose sum is σ = 5806080. Its totient is φ = 663360.

The previous prime is 2156221. The next prime is 2156251. The reversal of 2156232 is 2326512.

It is a junction number, because it is equal to n+sod(n) for n = 2156199 and 2156208.

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, 3144 + ... + 3767.

It is an arithmetic number, because the mean of its divisors is an integer number (181440).

2^2156232 is an apocalyptic number.

It is an amenable number.

2156232 is an abundant number, since it is smaller than the sum of its proper divisors (3649848).

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

2156232 is a wasteful number, since it uses less digits than its factorization.

2156232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6933 (or 6929 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 2156232 is about 1468.4113864990. The cubic root of 2156232 is about 129.1908718194.

Subtracting from 2156232 its product of digits (720), we obtain a palindrome (2155512).

The spelling of 2156232 in words is "two million, one hundred fifty-six thousand, two hundred thirty-two".