22573439 has 8 divisors (see below), whose sum is σ = 26183808. Its totient is φ = 19059480.

The previous prime is 22573429. The next prime is 22573457. The reversal of 22573439 is 93437522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22573439 - 2¹² = 22569343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22573399 and 22573408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22573429) 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, 23597 + ... + 24534.

It is an arithmetic number, because the mean of its divisors is an integer number (3272976).

Almost surely, 2^22573439 is an apocalyptic number.

22573439 is a deficient number, since it is larger than the sum of its proper divisors (3610369).

22573439 is an equidigital number, since it uses as much as digits as its factorization.

22573439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48205.

The product of its digits is 45360, while the sum is 35.

The square root of 22573439 is about 4751.1513341505. The cubic root of 22573439 is about 282.6176250718.

The spelling of 22573439 in words is "twenty-two million, five hundred seventy-three thousand, four hundred thirty-nine".