22445839 has 4 divisors (see below), whose sum is σ = 24172456. Its totient is φ = 20719224.

The previous prime is 22445827. The next prime is 22445849. The reversal of 22445839 is 93854422.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22445839 - 2¹⁷ = 22314767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22445798 and 22445807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22445809) 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, 863289 + ... + 863314.

It is an arithmetic number, because the mean of its divisors is an integer number (6043114).

Almost surely, 2^22445839 is an apocalyptic number.

22445839 is a deficient number, since it is larger than the sum of its proper divisors (1726617).

22445839 is a wasteful number, since it uses less digits than its factorization.

22445839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726616.

The product of its digits is 69120, while the sum is 37.

The square root of 22445839 is about 4737.7039797775. The cubic root of 22445839 is about 282.0841046525.

The spelling of 22445839 in words is "twenty-two million, four hundred forty-five thousand, eight hundred thirty-nine".