220611442 has 8 divisors (see below), whose sum is σ = 330988716. Its totient is φ = 110281872.

The previous prime is 220611437. The next prime is 220611449. The reversal of 220611442 is 244116022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 184117761 + 36493681 = 13569^2 + 6041^2 .

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

It is not an unprimeable number, because it can be changed into a prime (220611449) 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 3 ways as a sum of consecutive naturals, for example, 3768 + ... + 21340.

Almost surely, 2^220611442 is an apocalyptic number.

220611442 is a deficient number, since it is larger than the sum of its proper divisors (110377274).

220611442 is a wasteful number, since it uses less digits than its factorization.

220611442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23852.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 220611442 is about 14852.9943782390. The cubic root of 220611442 is about 604.2398229691.

Adding to 220611442 its reverse (244116022), we get a palindrome (464727464).

The spelling of 220611442 in words is "two hundred twenty million, six hundred eleven thousand, four hundred forty-two".