22229544 has 96 divisors (see below), whose sum is σ = 62028000. Its totient is φ = 6612480.

The previous prime is 22229539. The next prime is 22229561. The reversal of 22229544 is 44592222.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 542164 + ... + 542204.

It is an arithmetic number, because the mean of its divisors is an integer number (646125).

Almost surely, 2^22229544 is an apocalyptic number.

22229544 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 22229544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31014000).

22229544 is an abundant number, since it is smaller than the sum of its proper divisors (39798456).

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

22229544 is a wasteful number, since it uses less digits than its factorization.

22229544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 94 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 22229544 is about 4714.8217357605. The cubic root of 22229544 is about 281.1750955095.

The spelling of 22229544 in words is "twenty-two million, two hundred twenty-nine thousand, five hundred forty-four".