22469639 has 4 divisors (see below), whose sum is σ = 22586256. Its totient is φ = 22353024.

The previous prime is 22469621. The next prime is 22469641. The reversal of 22469639 is 93696422.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22469639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22469596 and 22469605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22469659) 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 3 ways as a sum of consecutive naturals, for example, 58019 + ... + 58404.

It is an arithmetic number, because the mean of its divisors is an integer number (5646564).

Almost surely, 2^22469639 is an apocalyptic number.

22469639 is a deficient number, since it is larger than the sum of its proper divisors (116617).

22469639 is a wasteful number, since it uses less digits than its factorization.

22469639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116616.

The product of its digits is 139968, while the sum is 41.

The square root of 22469639 is about 4740.2150795085. The cubic root of 22469639 is about 282.1837701957.

The spelling of 22469639 in words is "twenty-two million, four hundred sixty-nine thousand, six hundred thirty-nine".