22231859 has 8 divisors (see below), whose sum is σ = 23982672. Its totient is φ = 20486880.

The previous prime is 22231789. The next prime is 22231861. The reversal of 22231859 is 95813222.

It is a happy number.

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 22231859 - 2²⁴ = 5454643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22231889) 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, 9632 + ... + 11714.

It is an arithmetic number, because the mean of its divisors is an integer number (2997834).

Almost surely, 2^22231859 is an apocalyptic number.

22231859 is a deficient number, since it is larger than the sum of its proper divisors (1750813).

22231859 is a wasteful number, since it uses less digits than its factorization.

22231859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2917.

The product of its digits is 8640, while the sum is 32.

The square root of 22231859 is about 4715.0672317582. The cubic root of 22231859 is about 281.1848557599.

The spelling of 22231859 in words is "twenty-two million, two hundred thirty-one thousand, eight hundred fifty-nine".