22289746 has 8 divisors (see below), whose sum is σ = 33508224. Its totient is φ = 11120340.

The previous prime is 22289731. The next prime is 22289749. The reversal of 22289746 is 64798222.

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

It is a junction number, because it is equal to n+sod(n) for n = 22289699 and 22289708.

It is not an unprimeable number, because it can be changed into a prime (22289749) 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 3 ways as a sum of consecutive naturals, for example, 11110 + ... + 12961.

It is an arithmetic number, because the mean of its divisors is an integer number (4188528).

Almost surely, 2^22289746 is an apocalyptic number.

22289746 is a deficient number, since it is larger than the sum of its proper divisors (11218478).

22289746 is a wasteful number, since it uses less digits than its factorization.

22289746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24536.

The product of its digits is 96768, while the sum is 40.

The square root of 22289746 is about 4721.2017537911. The cubic root of 22289746 is about 281.4286926326.

The spelling of 22289746 in words is "twenty-two million, two hundred eighty-nine thousand, seven hundred forty-six".