22438559 has 8 divisors (see below), whose sum is σ = 26361552. Its totient is φ = 18829440.

The previous prime is 22438553. The next prime is 22438567. The reversal of 22438559 is 95583422.

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 22438559 - 2²⁴ = 5661343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22438553) 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, 78314 + ... + 78599.

It is an arithmetic number, because the mean of its divisors is an integer number (3295194).

Almost surely, 2^22438559 is an apocalyptic number.

22438559 is a deficient number, since it is larger than the sum of its proper divisors (3922993).

22438559 is a wasteful number, since it uses less digits than its factorization.

22438559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156937.

The product of its digits is 86400, while the sum is 38.

The square root of 22438559 is about 4736.9356128197. The cubic root of 22438559 is about 282.0536046514.

It can be divided in two parts, 224 and 38559, that added together give a palindrome (38783).

The spelling of 22438559 in words is "twenty-two million, four hundred thirty-eight thousand, five hundred fifty-nine".