220023009 has 12 divisors (see below), whose sum is σ = 317955456. Its totient is φ = 146615352.

The previous prime is 220023007. The next prime is 220023019. The reversal of 220023009 is 900320022.

It is not a de Polignac number, because 220023009 - 2¹ = 220023007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220022982 and 220023000.

It is not an unprimeable number, because it can be changed into a prime (220023007) 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 11 ways as a sum of consecutive naturals, for example, 23164 + ... + 31250.

It is an arithmetic number, because the mean of its divisors is an integer number (26496288).

Almost surely, 2^220023009 is an apocalyptic number.

It is an amenable number.

220023009 is a deficient number, since it is larger than the sum of its proper divisors (97932447).

220023009 is a wasteful number, since it uses less digits than its factorization.

220023009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11116 (or 11113 counting only the distinct ones).

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

The square root of 220023009 is about 14833.1725871440. The cubic root of 220023009 is about 603.7021185489.

The spelling of 220023009 in words is "two hundred twenty million, twenty-three thousand, nine".