22643082 has 144 divisors (see below), whose sum is σ = 66920256. Its totient is φ = 5356800.

The previous prime is 22643081. The next prime is 22643087. The reversal of 22643082 is 28034622.

22643082 is a `hidden beast` number, since 226 + 430 + 8 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (22643081) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 730407 + ... + 730437.

It is an arithmetic number, because the mean of its divisors is an integer number (464724).

Almost surely, 2^22643082 is an apocalyptic number.

22643082 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 22643082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33460128).

22643082 is an abundant number, since it is smaller than the sum of its proper divisors (44277174).

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

22643082 is a wasteful number, since it uses less digits than its factorization.

22643082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 22643082 is about 4758.4747556334. The cubic root of 22643082 is about 282.9079682598.

The spelling of 22643082 in words is "twenty-two million, six hundred forty-three thousand, eighty-two".