22389085 has 8 divisors (see below), whose sum is σ = 28447416. Its totient is φ = 16857600.

The previous prime is 22389083. The next prime is 22389113. The reversal of 22389085 is 58098322.

It can be written as a sum of positive squares in 4 ways, for example, as 7689529 + 14699556 = 2773^2 + 3834^2 .

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

It is not a de Polignac number, because 22389085 - 2¹ = 22389083 is a prime.

It is a super-2 number, since 2×22389085² = 1002542254274450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22389083) 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 7 ways as a sum of consecutive naturals, for example, 131616 + ... + 131785.

It is an arithmetic number, because the mean of its divisors is an integer number (3555927).

Almost surely, 2^22389085 is an apocalyptic number.

It is an amenable number.

22389085 is a deficient number, since it is larger than the sum of its proper divisors (6058331).

22389085 is a wasteful number, since it uses less digits than its factorization.

22389085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263423.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 22389085 is about 4731.7105786386. The cubic root of 22389085 is about 281.8461553760.

The spelling of 22389085 in words is "twenty-two million, three hundred eighty-nine thousand, eighty-five".