22715982 has 48 divisors (see below), whose sum is σ = 52316160. Its totient is φ = 7103376.

The previous prime is 22715981. The next prime is 22715989. The reversal of 22715982 is 28951722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22715981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43173 + ... + 43695.

It is an arithmetic number, because the mean of its divisors is an integer number (1089920).

Almost surely, 2^22715982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22715982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26158080).

22715982 is an abundant number, since it is smaller than the sum of its proper divisors (29600178).

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

22715982 is a wasteful number, since it uses less digits than its factorization.

22715982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 674 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 22715982 is about 4766.1286176519. The cubic root of 22715982 is about 283.2112529044.

The spelling of 22715982 in words is "twenty-two million, seven hundred fifteen thousand, nine hundred eighty-two".