22045242 has 8 divisors (see below), whose sum is σ = 44090496. Its totient is φ = 7348412.

The previous prime is 22045241. The next prime is 22045271. The reversal of 22045242 is 24254022.

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

22045242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (22045241) 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, 1837098 + ... + 1837109.

It is an arithmetic number, because the mean of its divisors is an integer number (5511312).

Almost surely, 2^22045242 is an apocalyptic number.

22045242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22045242 is a wasteful number, since it uses less digits than its factorization.

22045242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3674212.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 22045242 is about 4695.2360963002. The cubic root of 22045242 is about 280.3958771015.

Adding to 22045242 its reverse (24254022), we get a palindrome (46299264).

The spelling of 22045242 in words is "twenty-two million, forty-five thousand, two hundred forty-two".