22028039 has 8 divisors (see below), whose sum is σ = 25444368. Its totient is φ = 18847360.

The previous prime is 22027991. The next prime is 22028051. The reversal of 22028039 is 93082022.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22028039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22027999 and 22028017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22028099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58712 + ... + 59085.

It is an arithmetic number, because the mean of its divisors is an integer number (3180546).

Almost surely, 2^22028039 is an apocalyptic number.

22028039 is a deficient number, since it is larger than the sum of its proper divisors (3416329).

22028039 is a wasteful number, since it uses less digits than its factorization.

22028039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117825.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 22028039 is about 4693.4037755130. The cubic root of 22028039 is about 280.3229225001.

The spelling of 22028039 in words is "twenty-two million, twenty-eight thousand, thirty-nine".