220340042 has 16 divisors (see below), whose sum is σ = 363508992. Its totient is φ = 99531120.

The previous prime is 220340039. The next prime is 220340053. The reversal of 220340042 is 240043022.

220340042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 220340042.

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, 88934 + ... + 91377.

It is an arithmetic number, because the mean of its divisors is an integer number (22719312).

Almost surely, 2^220340042 is an apocalyptic number.

220340042 is a deficient number, since it is larger than the sum of its proper divisors (143168950).

220340042 is a wasteful number, since it uses less digits than its factorization.

220340042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180373.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 220340042 is about 14843.8553617313. The cubic root of 220340042 is about 603.9919392080.

Adding to 220340042 its reverse (240043022), we get a palindrome (460383064).

The spelling of 220340042 in words is "two hundred twenty million, three hundred forty thousand, forty-two".