22020417 has 12 divisors (see below), whose sum is σ = 32985680. Its totient is φ = 14680116.

The previous prime is 22020413. The next prime is 22020419. The reversal of 22020417 is 71402022.

It is not a de Polignac number, because 22020417 - 2² = 22020413 is a prime.

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 22020417.

It is not an unprimeable number, because it can be changed into a prime (22020413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45067 + ... + 45552.

Almost surely, 2^22020417 is an apocalyptic number.

22020417 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

22020417 is a deficient number, since it is larger than the sum of its proper divisors (10965263).

22020417 is an frugal number, since it uses more digits than its factorization.

22020417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90634 (or 90622 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 22020417 is about 4692.5917146072. The cubic root of 22020417 is about 280.2905869270.

Adding to 22020417 its reverse (71402022), we get a palindrome (93422439).

The spelling of 22020417 in words is "twenty-two million, twenty thousand, four hundred seventeen".