22020687 has 32 divisors (see below), whose sum is σ = 35974400. Its totient is φ = 13226976.

The previous prime is 22020673. The next prime is 22020703. The reversal of 22020687 is 78602022.

It is not a de Polignac number, because 22020687 - 2⁶ = 22020623 is a prime.

It is a super-3 number, since 3×22020687³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22020687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14364 + ... + 15822.

It is an arithmetic number, because the mean of its divisors is an integer number (1124200).

Almost surely, 2^22020687 is an apocalyptic number.

22020687 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

22020687 is a deficient number, since it is larger than the sum of its proper divisors (13953713).

22020687 is a wasteful number, since it uses less digits than its factorization.

22020687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524 (or 1518 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 22020687 is about 4692.6204832694. The cubic root of 22020687 is about 280.2917325024.

The spelling of 22020687 in words is "twenty-two million, twenty thousand, six hundred eighty-seven".