220811338 has 32 divisors (see below), whose sum is σ = 377261568. Its totient is φ = 96033600.

The previous prime is 220811333. The next prime is 220811341. The reversal of 220811338 is 833118022.

It is not an unprimeable number, because it can be changed into a prime (220811333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47431 + ... + 51877.

It is an arithmetic number, because the mean of its divisors is an integer number (11789424).

Almost surely, 2^220811338 is an apocalyptic number.

220811338 is a deficient number, since it is larger than the sum of its proper divisors (156450230).

220811338 is a wasteful number, since it uses less digits than its factorization.

220811338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4558.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 220811338 is about 14859.7220027832. The cubic root of 220811338 is about 604.4222684183.

It can be divided in two parts, 2208113 and 38, that added together give a triangular number (2208151 = T₂₁₀₁).

The spelling of 220811338 in words is "two hundred twenty million, eight hundred eleven thousand, three hundred thirty-eight".