22026539 has 4 divisors (see below), whose sum is σ = 22037400. Its totient is φ = 22015680.

The previous prime is 22026517. The next prime is 22026541. The reversal of 22026539 is 93562022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22026539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22026569) 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, 1382 + ... + 6779.

It is an arithmetic number, because the mean of its divisors is an integer number (5509350).

Almost surely, 2^22026539 is an apocalyptic number.

22026539 is a deficient number, since it is larger than the sum of its proper divisors (10861).

22026539 is an equidigital number, since it uses as much as digits as its factorization.

22026539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10860.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 22026539 is about 4693.2439740546. The cubic root of 22026539 is about 280.3165594896.

The spelling of 22026539 in words is "twenty-two million, twenty-six thousand, five hundred thirty-nine".