2218335442 has 16 divisors (see below), whose sum is σ = 3347772120. Its totient is φ = 1102423168.

The previous prime is 2218335437. The next prime is 2218335451. The reversal of 2218335442 is 2445338122.

It can be written as a sum of positive squares in 4 ways, for example, as 2087484721 + 130850721 = 45689^2 + 11439^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2218335398 and 2218335407.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 500934 + ... + 505342.

Almost surely, 2^2218335442 is an apocalyptic number.

2218335442 is a deficient number, since it is larger than the sum of its proper divisors (1129436678).

2218335442 is a wasteful number, since it uses less digits than its factorization.

2218335442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5885.

The product of its digits is 46080, while the sum is 34.

The square root of 2218335442 is about 47099.2085071501. The cubic root of 2218335442 is about 1304.1946248860.

The spelling of 2218335442 in words is "two billion, two hundred eighteen million, three hundred thirty-five thousand, four hundred forty-two".