220442235 has 48 divisors (see below), whose sum is σ = 397257504. Its totient is φ = 103758336.

The previous prime is 220442221. The next prime is 220442239. The reversal of 220442235 is 532244022.

It is a happy number.

It is not a de Polignac number, because 220442235 - 2⁵ = 220442203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220442239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 102087 + ... + 104223.

It is an arithmetic number, because the mean of its divisors is an integer number (8276198).

Almost surely, 2^220442235 is an apocalyptic number.

220442235 is a deficient number, since it is larger than the sum of its proper divisors (176815269).

220442235 is a wasteful number, since it uses less digits than its factorization.

220442235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204 (or 2181 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 220442235 is about 14847.2972287888. The cubic root of 220442235 is about 604.0853012795.

Adding to 220442235 its reverse (532244022), we get a palindrome (752686257).

The spelling of 220442235 in words is "two hundred twenty million, four hundred forty-two thousand, two hundred thirty-five".