2168532 has 72 divisors (see below), whose sum is σ = 5992896. Its totient is φ = 684288.

The previous prime is 2168521. The next prime is 2168549. The reversal of 2168532 is 2358612.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2168496 and 2168505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22308 + ... + 22404.

2^2168532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2168532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2996448).

2168532 is an abundant number, since it is smaller than the sum of its proper divisors (3824364).

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

2168532 is a wasteful number, since it uses less digits than its factorization.

2168532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 125 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2168532 is about 1472.5936303000. The cubic root of 2168532 is about 129.4360581358.

The spelling of 2168532 in words is "two million, one hundred sixty-eight thousand, five hundred thirty-two".