22026239 has 4 divisors (see below), whose sum is σ = 22086624. Its totient is φ = 21965856.

The previous prime is 22026233. The next prime is 22026247. The reversal of 22026239 is 93262022.

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-22026239 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22026233) 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, 29642 + ... + 30375.

It is an arithmetic number, because the mean of its divisors is an integer number (5521656).

Almost surely, 2^22026239 is an apocalyptic number.

22026239 is a deficient number, since it is larger than the sum of its proper divisors (60385).

22026239 is an equidigital number, since it uses as much as digits as its factorization.

22026239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60384.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 22026239 is about 4693.2120131100. The cubic root of 22026239 is about 280.3152868528.

The spelling of 22026239 in words is "twenty-two million, twenty-six thousand, two hundred thirty-nine".