20260218 has 32 divisors (see below), whose sum is σ = 44416512. Its totient is φ = 6110000.

The previous prime is 20260211. The next prime is 20260237. The reversal of 20260218 is 81206202.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20260194 and 20260203.

It is not an unprimeable number, because it can be changed into a prime (20260211) 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 15 ways as a sum of consecutive naturals, for example, 15955 + ... + 17177.

It is an arithmetic number, because the mean of its divisors is an integer number (1388016).

Almost surely, 2^20260218 is an apocalyptic number.

20260218 is an abundant number, since it is smaller than the sum of its proper divisors (24156294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20260218 is a wasteful number, since it uses less digits than its factorization.

20260218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 20260218 is about 4501.1351901493. The cubic root of 20260218 is about 272.6139264955.

The spelling of 20260218 in words is "twenty million, two hundred sixty thousand, two hundred eighteen".