220626018 has 42 divisors (see below), whose sum is σ = 497460369. Its totient is φ = 73352952.

The previous prime is 220626011. The next prime is 220626023. The reversal of 220626018 is 810626022.

220626018 is a `hidden beast` number, since 2 + 20 + 626 + 0 + 18 = 666.

220626018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 204004089 + 16621929 = 14283^2 + 4077^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=10503.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 220625982 and 220626000.

It is not an unprimeable number, because it can be changed into a prime (220626011) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 566968 + ... + 567356.

Almost surely, 2^220626018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220626018

220626018 is an abundant number, since it is smaller than the sum of its proper divisors (276834351).

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

220626018 is an frugal number, since it uses more digits than its factorization.

220626018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 220626018 is about 14853.4850456046. The cubic root of 220626018 is about 604.2531302355.

It can be divided in two parts, 2206 and 26018, that added together give a square (28224 = 168²).

The spelling of 220626018 in words is "two hundred twenty million, six hundred twenty-six thousand, eighteen".