22042906 has 8 divisors (see below), whose sum is σ = 33768000. Its totient is φ = 10786908.

The previous prime is 22042903. The next prime is 22042919. The reversal of 22042906 is 60924022.

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

It is not an unprimeable number, because it can be changed into a prime (22042903) 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, 117156 + ... + 117343.

It is an arithmetic number, because the mean of its divisors is an integer number (4221000).

Almost surely, 2^22042906 is an apocalyptic number.

22042906 is a deficient number, since it is larger than the sum of its proper divisors (11725094).

22042906 is a wasteful number, since it uses less digits than its factorization.

22042906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234548.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 22042906 is about 4694.9873269265. The cubic root of 22042906 is about 280.3859728040.

Adding to 22042906 its reverse (60924022), we get a palindrome (82966928).

The spelling of 22042906 in words is "twenty-two million, forty-two thousand, nine hundred six".