22536442 has 8 divisors (see below), whose sum is σ = 34895232. Its totient is φ = 10904700.

The previous prime is 22536439. The next prime is 22536457. The reversal of 22536442 is 24463522.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22536442.

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, 181684 + ... + 181807.

It is an arithmetic number, because the mean of its divisors is an integer number (4361904).

Almost surely, 2^22536442 is an apocalyptic number.

22536442 is a deficient number, since it is larger than the sum of its proper divisors (12358790).

22536442 is a wasteful number, since it uses less digits than its factorization.

22536442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363524.

The product of its digits is 11520, while the sum is 28.

The square root of 22536442 is about 4747.2562601991. The cubic root of 22536442 is about 282.4631408302.

Adding to 22536442 its reverse (24463522), we get a palindrome (46999964).

The spelling of 22536442 in words is "twenty-two million, five hundred thirty-six thousand, four hundred forty-two".