22144128 has 32 divisors (see below), whose sum is σ = 58821360. Its totient is φ = 7381248.

The previous prime is 22144117. The next prime is 22144169. The reversal of 22144128 is 82144122.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 22144098 and 22144107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28450 + ... + 29217.

Almost surely, 2^22144128 is an apocalyptic number.

It is an amenable number.

22144128 is an abundant number, since it is smaller than the sum of its proper divisors (36677232).

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

22144128 is an equidigital number, since it uses as much as digits as its factorization.

22144128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57684 (or 57672 counting only the distinct ones).

The product of its digits is 1024, while the sum is 24.

The square root of 22144128 is about 4705.7547747412. The cubic root of 22144128 is about 280.8144991336.

The spelling of 22144128 in words is "twenty-two million, one hundred forty-four thousand, one hundred twenty-eight".