20422017 has 96 divisors (see below), whose sum is σ = 40857600. Its totient is φ = 9836640.

The previous prime is 20422001. The next prime is 20422021. The reversal of 20422017 is 71022402.

It is not a de Polignac number, because 20422017 - 2⁴ = 20422001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20422027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 434488 + ... + 434534.

It is an arithmetic number, because the mean of its divisors is an integer number (425600).

Almost surely, 2^20422017 is an apocalyptic number.

20422017 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

20422017 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

20422017 is a wasteful number, since it uses less digits than its factorization.

20422017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 87 counting only the distinct ones).

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

The square root of 20422017 is about 4519.0725818469. The cubic root of 20422017 is about 273.3377054955.

Adding to 20422017 its reverse (71022402), we get a palindrome (91444419).

The spelling of 20422017 in words is "twenty million, four hundred twenty-two thousand, seventeen".