22439805 has 8 divisors (see below), whose sum is σ = 35903712. Its totient is φ = 11967888.

The previous prime is 22439803. The next prime is 22439831. The reversal of 22439805 is 50893422.

It is a happy number.

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

It is not a de Polignac number, because 22439805 - 2¹ = 22439803 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22439801) 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, 747979 + ... + 748008.

It is an arithmetic number, because the mean of its divisors is an integer number (4487964).

Almost surely, 2^22439805 is an apocalyptic number.

It is an amenable number.

22439805 is a deficient number, since it is larger than the sum of its proper divisors (13463907).

22439805 is a wasteful number, since it uses less digits than its factorization.

22439805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495995.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 22439805 is about 4737.0671306200. The cubic root of 22439805 is about 282.0588253118.

The spelling of 22439805 in words is "twenty-two million, four hundred thirty-nine thousand, eight hundred five".