22646242 has 8 divisors (see below), whose sum is σ = 34178256. Its totient is φ = 11253492.

The previous prime is 22646207. The next prime is 22646243. The reversal of 22646242 is 24264622.

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 22646242.

It is not an unprimeable number, because it can be changed into a prime (22646243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34408 + ... + 35059.

It is an arithmetic number, because the mean of its divisors is an integer number (4272282).

Almost surely, 2^22646242 is an apocalyptic number.

22646242 is a deficient number, since it is larger than the sum of its proper divisors (11532014).

22646242 is a wasteful number, since it uses less digits than its factorization.

22646242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69632.

The product of its digits is 9216, while the sum is 28.

The square root of 22646242 is about 4758.8067832178. The cubic root of 22646242 is about 282.9211282410.

The spelling of 22646242 in words is "twenty-two million, six hundred forty-six thousand, two hundred forty-two".