220444442 has 8 divisors (see below), whose sum is σ = 333191232. Its totient is φ = 109380700.

The previous prime is 220444417. The next prime is 220444453. The reversal of 220444442 is 244444022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420434 + ... + 420957.

It is an arithmetic number, because the mean of its divisors is an integer number (41648904).

Almost surely, 2^220444442 is an apocalyptic number.

220444442 is a deficient number, since it is larger than the sum of its proper divisors (112746790).

220444442 is a wasteful number, since it uses less digits than its factorization.

220444442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841524.

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 220444442 is about 14847.3715518943. The cubic root of 220444442 is about 604.0873172449.

Adding to 220444442 its reverse (244444022), we get a palindrome (464888464).

The spelling of 220444442 in words is "two hundred twenty million, four hundred forty-four thousand, four hundred forty-two".