22990989 has 8 divisors (see below), whose sum is σ = 35033920. Its totient is φ = 13137696.

The previous prime is 22990967. The next prime is 22990991. The reversal of 22990989 is 98909922.

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

It is not a de Polignac number, because 22990989 - 2¹³ = 22982797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22990999) 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, 547384 + ... + 547425.

It is an arithmetic number, because the mean of its divisors is an integer number (4379240).

Almost surely, 2^22990989 is an apocalyptic number.

It is an amenable number.

22990989 is a deficient number, since it is larger than the sum of its proper divisors (12042931).

22990989 is a wasteful number, since it uses less digits than its factorization.

22990989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094819.

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 22990989 is about 4794.8919695860. The cubic root of 22990989 is about 284.3495538798.

The spelling of 22990989 in words is "twenty-two million, nine hundred ninety thousand, nine hundred eighty-nine".