22061568 has 80 divisors (see below), whose sum is σ = 60103296. Its totient is φ = 7188480.

The previous prime is 22061513. The next prime is 22061569. The reversal of 22061568 is 86516022.

It is not an unprimeable number, because it can be changed into a prime (22061569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81273 + ... + 81543.

Almost surely, 2^22061568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22061568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30051648).

22061568 is an abundant number, since it is smaller than the sum of its proper divisors (38041728).

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

22061568 is an equidigital number, since it uses as much as digits as its factorization.

22061568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 22061568 is about 4696.9743452567. The cubic root of 22061568 is about 280.4650774231.

The spelling of 22061568 in words is "twenty-two million, sixty-one thousand, five hundred sixty-eight".