22182732 has 144 divisors (see below), whose sum is σ = 68490240. Its totient is φ = 5961600.

The previous prime is 22182707. The next prime is 22182733. The reversal of 22182732 is 23728122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22182696 and 22182705.

It is not an unprimeable number, because it can be changed into a prime (22182733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 159519 + ... + 159657.

Almost surely, 2^22182732 is an apocalyptic number.

22182732 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22182732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34245120).

22182732 is an abundant number, since it is smaller than the sum of its proper divisors (46307508).

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

22182732 is a wasteful number, since it uses less digits than its factorization.

22182732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 199 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 22182732 is about 4709.8547748312. The cubic root of 22182732 is about 280.9775863043.

It can be divided in two parts, 2218 and 2732, that added together give a triangular number (4950 = T₉₉).

The spelling of 22182732 in words is "twenty-two million, one hundred eighty-two thousand, seven hundred thirty-two".