22055424 has 80 divisors (see below), whose sum is σ = 59808672. Its totient is φ = 7221248.

The previous prime is 22055377. The next prime is 22055489. The reversal of 22055424 is 42455022.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 22055394 and 22055403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127402 + ... + 127574.

Almost surely, 2^22055424 is an apocalyptic number.

22055424 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 22055424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29904336).

22055424 is an abundant number, since it is smaller than the sum of its proper divisors (37753248).

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

22055424 is an equidigital number, since it uses as much as digits as its factorization.

22055424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 22055424 is about 4696.3202616517. The cubic root of 22055424 is about 280.4390391194.

The spelling of 22055424 in words is "twenty-two million, fifty-five thousand, four hundred twenty-four".