22272859 has 4 divisors (see below), whose sum is σ = 25454704. Its totient is φ = 19091016.

The previous prime is 22272857. The next prime is 22272893. The reversal of 22272859 is 95827222.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22272859 - 2¹ = 22272857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22272851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1590912 + ... + 1590925.

It is an arithmetic number, because the mean of its divisors is an integer number (6363676).

Almost surely, 2^22272859 is an apocalyptic number.

22272859 is a deficient number, since it is larger than the sum of its proper divisors (3181845).

22272859 is an equidigital number, since it uses as much as digits as its factorization.

22272859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181844.

The product of its digits is 40320, while the sum is 37.

The square root of 22272859 is about 4719.4129931592. The cubic root of 22272859 is about 281.3576033371.

The spelling of 22272859 in words is "twenty-two million, two hundred seventy-two thousand, eight hundred fifty-nine".