220442442424 has 8 divisors (see below), whose sum is σ = 413329579560. Its totient is φ = 110221221208.

The previous prime is 220442442359. The next prime is 220442442427. The reversal of 220442442424 is 424244244022.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 220442442424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220442442427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13777652644 + ... + 13777652659.

It is an arithmetic number, because the mean of its divisors is an integer number (51666197445).

Almost surely, 2^220442442424 is an apocalyptic number.

It is an amenable number.

220442442424 is a deficient number, since it is larger than the sum of its proper divisors (192887137136).

220442442424 is a wasteful number, since it uses less digits than its factorization.

220442442424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27555305309 (or 27555305305 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 220442442424 its reverse (424244244022), we get a palindrome (644686686446).

The spelling of 220442442424 in words is "two hundred twenty billion, four hundred forty-two million, four hundred forty-two thousand, four hundred twenty-four".