22179889 has 8 divisors (see below), whose sum is σ = 23316480. Its totient is φ = 21057696.

The previous prime is 22179887. The next prime is 22179901. The reversal of 22179889 is 98897122.

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

It is not a de Polignac number, because 22179889 - 2¹ = 22179887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22179887) 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, 369 + ... + 6670.

It is an arithmetic number, because the mean of its divisors is an integer number (2914560).

Almost surely, 2^22179889 is an apocalyptic number.

It is an amenable number.

22179889 is a deficient number, since it is larger than the sum of its proper divisors (1136591).

22179889 is a wasteful number, since it uses less digits than its factorization.

22179889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7199.

The product of its digits is 145152, while the sum is 46.

The square root of 22179889 is about 4709.5529511834. The cubic root of 22179889 is about 280.9655821711.

The spelling of 22179889 in words is "twenty-two million, one hundred seventy-nine thousand, eight hundred eighty-nine".