22000392 has 48 divisors (see below), whose sum is σ = 60606000. Its totient is φ = 7207776.

The previous prime is 22000387. The next prime is 22000399. The reversal of 22000392 is 29300022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22000399) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1659 + ... + 6837.

It is an arithmetic number, because the mean of its divisors is an integer number (1262625).

Almost surely, 2^22000392 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 22000392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30303000).

22000392 is an abundant number, since it is smaller than the sum of its proper divisors (38605608).

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

22000392 is a wasteful number, since it uses less digits than its factorization.

22000392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5250 (or 5243 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 22000392 is about 4690.4575469777. The cubic root of 22000392 is about 280.2055972972.

The spelling of 22000392 in words is "twenty-two million, three hundred ninety-two", and thus it is an aban number.