22022539 has 16 divisors (see below), whose sum is σ = 28903680. Its totient is φ = 16256160.

The previous prime is 22022509. The next prime is 22022543. The reversal of 22022539 is 93522022.

It is a cyclic number.

It is not a de Polignac number, because 22022539 - 2²¹ = 19925387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22022509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6064 + ... + 8989.

It is an arithmetic number, because the mean of its divisors is an integer number (1806480).

Almost surely, 2^22022539 is an apocalyptic number.

22022539 is a deficient number, since it is larger than the sum of its proper divisors (6881141).

22022539 is a wasteful number, since it uses less digits than its factorization.

22022539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15090.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 22022539 is about 4692.8178102287. The cubic root of 22022539 is about 280.2995900493.

The spelling of 22022539 in words is "twenty-two million, twenty-two thousand, five hundred thirty-nine".