22219456 has 28 divisors (see below), whose sum is σ = 50391568. Its totient is φ = 9522432.

The previous prime is 22219447. The next prime is 22219471. The reversal of 22219456 is 65491222.

It is a tau number, because it is divible by the number of its divisors (28).

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, 24351 + ... + 25246.

Almost surely, 2^22219456 is an apocalyptic number.

It is an amenable number.

22219456 is an abundant number, since it is smaller than the sum of its proper divisors (28172112).

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

22219456 is an equidigital number, since it uses as much as digits as its factorization.

22219456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49616 (or 49606 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 22219456 is about 4713.7517966053. The cubic root of 22219456 is about 281.1325556723.

The spelling of 22219456 in words is "twenty-two million, two hundred nineteen thousand, four hundred fifty-six".