2018218258 has 32 divisors (see below), whose sum is σ = 3537566208. Its totient is φ = 845553600.

The previous prime is 2018218253. The next prime is 2018218297. The reversal of 2018218258 is 8528128102.

It is not an unprimeable number, because it can be changed into a prime (2018218253) 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, 907588 + ... + 909808.

It is an arithmetic number, because the mean of its divisors is an integer number (110548944).

Almost surely, 2^2018218258 is an apocalyptic number.

2018218258 is a deficient number, since it is larger than the sum of its proper divisors (1519347950).

2018218258 is a wasteful number, since it uses less digits than its factorization.

2018218258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3658.

The product of its (nonzero) digits is 20480, while the sum is 37.

The square root of 2018218258 is about 44924.5841160494. The cubic root of 2018218258 is about 1263.7350868375.

The spelling of 2018218258 in words is "two billion, eighteen million, two hundred eighteen thousand, two hundred fifty-eight".