2018218256 has 40 divisors (see below), whose sum is σ = 3956157504. Its totient is φ = 997315200.

The previous prime is 2018218253. The next prime is 2018218297. The reversal of 2018218256 is 6528128102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2018218253) 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, 1154375 + ... + 1156121.

Almost surely, 2^2018218256 is an apocalyptic number.

It is an amenable number.

2018218256 is a deficient number, since it is larger than the sum of its proper divisors (1937939248).

2018218256 is a wasteful number, since it uses less digits than its factorization.

2018218256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559 (or 2553 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 2018218256 is about 44924.5840937899. The cubic root of 2018218256 is about 1263.7350864201.

The spelling of 2018218256 in words is "two billion, eighteen million, two hundred eighteen thousand, two hundred fifty-six".