22660242 has 16 divisors (see below), whose sum is σ = 49440672. Its totient is φ = 6866720.

The previous prime is 22660213. The next prime is 22660247. The reversal of 22660242 is 24206622.

It is not an unprimeable number, because it can be changed into a prime (22660247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171603 + ... + 171734.

It is an arithmetic number, because the mean of its divisors is an integer number (3090042).

Almost surely, 2^22660242 is an apocalyptic number.

22660242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22660242 is an abundant number, since it is smaller than the sum of its proper divisors (26780430).

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

22660242 is a wasteful number, since it uses less digits than its factorization.

22660242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343353.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 22660242 is about 4760.2775129188. The cubic root of 22660242 is about 282.9794172330.

Adding to 22660242 its reverse (24206622), we get a palindrome (46866864).

The spelling of 22660242 in words is "twenty-two million, six hundred sixty thousand, two hundred forty-two".