22245858 has 24 divisors (see below), whose sum is σ = 48630348. Its totient is φ = 7348992.

The previous prime is 22245841. The next prime is 22245859. The reversal of 22245858 is 85854222.

It can be written as a sum of positive squares in 2 ways, for example, as 22212369 + 33489 = 4713^2 + 183^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22245859) 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 11 ways as a sum of consecutive naturals, for example, 3435 + ... + 7502.

Almost surely, 2^22245858 is an apocalyptic number.

22245858 is an abundant number, since it is smaller than the sum of its proper divisors (26384490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22245858 is a wasteful number, since it uses less digits than its factorization.

22245858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11058 (or 11055 counting only the distinct ones).

The product of its digits is 51200, while the sum is 36.

The square root of 22245858 is about 4716.5514944714. The cubic root of 22245858 is about 281.2438623846.

The spelling of 22245858 in words is "twenty-two million, two hundred forty-five thousand, eight hundred fifty-eight".