22085544 has 64 divisors (see below), whose sum is σ = 60359040. Its totient is φ = 6693120.

The previous prime is 22085537. The next prime is 22085551. The reversal of 22085544 is 44558022.

It is an interprime number because it is at equal distance from previous prime (22085537) and next prime (22085551).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21654 + ... + 22650.

It is an arithmetic number, because the mean of its divisors is an integer number (943110).

Almost surely, 2^22085544 is an apocalyptic number.

22085544 is a gapful number since it is divisible by the number (24) 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 22085544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30179520).

22085544 is an abundant number, since it is smaller than the sum of its proper divisors (38273496).

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

22085544 is a wasteful number, since it uses less digits than its factorization.

22085544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090 (or 1086 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 22085544 is about 4699.5259335384. The cubic root of 22085544 is about 280.5666416181.

The spelling of 22085544 in words is "twenty-two million, eighty-five thousand, five hundred forty-four".