22020039 has 32 divisors (see below), whose sum is σ = 34675200. Its totient is φ = 13780800.

The previous prime is 22020029. The next prime is 22020059. The reversal of 22020039 is 93002022.

It is not a de Polignac number, because 22020039 - 2⁴ = 22020023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36339 + ... + 36939.

It is an arithmetic number, because the mean of its divisors is an integer number (1083600).

Almost surely, 2^22020039 is an apocalyptic number.

22020039 is a deficient number, since it is larger than the sum of its proper divisors (12655161).

22020039 is a wasteful number, since it uses less digits than its factorization.

22020039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 22020039 is about 4692.5514381837. The cubic root of 22020039 is about 280.2889831056.

The spelling of 22020039 in words is "twenty-two million, twenty thousand, thirty-nine".