22000989 has 8 divisors (see below), whose sum is σ = 29888352. Its totient is φ = 14390480.

The previous prime is 22000963. The next prime is 22001033. The reversal of 22000989 is 98900022.

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

It is a cyclic number.

It is not a de Polignac number, because 22000989 - 2¹³ = 21992797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69027 + ... + 69344.

It is an arithmetic number, because the mean of its divisors is an integer number (3736044).

Almost surely, 2^22000989 is an apocalyptic number.

It is an amenable number.

22000989 is a deficient number, since it is larger than the sum of its proper divisors (7887363).

22000989 is a wasteful number, since it uses less digits than its factorization.

22000989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138427.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 22000989 is about 4690.5211863928. The cubic root of 22000989 is about 280.2081318161.

The spelling of 22000989 in words is "twenty-two million, nine hundred eighty-nine", and thus it is an aban number.