2018256 has 40 divisors (see below), whose sum is σ = 5490720. Its totient is φ = 637056.

The previous prime is 2018251. The next prime is 2018281. The reversal of 2018256 is 6528102.

It is a super-3 number, since 3×2018256³ = 24663233320811163648, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2018251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195 + ... + 2018.

It is an arithmetic number, because the mean of its divisors is an integer number (137268).

2^2018256 is an apocalyptic number.

2018256 is the 899-th centered pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2018256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2745360).

2018256 is an abundant number, since it is smaller than the sum of its proper divisors (3472464).

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

2018256 is a wasteful number, since it uses less digits than its factorization.

2018256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243 (or 2237 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 2018256 is about 1420.6533708122. The cubic root of 2018256 is about 126.3742964346.

The spelling of 2018256 in words is "two million, eighteen thousand, two hundred fifty-six".