22442569 has 4 divisors (see below), whose sum is σ = 22464196. Its totient is φ = 22420944.

The previous prime is 22442561. The next prime is 22442573. The reversal of 22442569 is 96524422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19686969 + 2755600 = 4437^2 + 1660^2 .

It is a cyclic number.

It is not a de Polignac number, because 22442569 - 2³ = 22442561 is a prime.

It is a super-2 number, since 2×22442569² = 1007337806639522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22442561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9174 + ... + 11359.

It is an arithmetic number, because the mean of its divisors is an integer number (5616049).

Almost surely, 2^22442569 is an apocalyptic number.

It is an amenable number.

22442569 is a deficient number, since it is larger than the sum of its proper divisors (21627).

22442569 is a wasteful number, since it uses less digits than its factorization.

22442569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21626.

The product of its digits is 34560, while the sum is 34.

The square root of 22442569 is about 4737.3588633330. The cubic root of 22442569 is about 282.0704056053.

The spelling of 22442569 in words is "twenty-two million, four hundred forty-two thousand, five hundred sixty-nine".