220420013 has 12 divisors (see below), whose sum is σ = 250099584. Its totient is φ = 193914600.

The previous prime is 220420003. The next prime is 220420043. The reversal of 220420013 is 310024022.

It is a de Polignac number, because none of the positive numbers 2^k-220420013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220420013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220420003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25631 + ... + 33132.

It is an arithmetic number, because the mean of its divisors is an integer number (20841632).

Almost surely, 2^220420013 is an apocalyptic number.

It is an amenable number.

220420013 is a deficient number, since it is larger than the sum of its proper divisors (29679571).

220420013 is a wasteful number, since it uses less digits than its factorization.

220420013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58816 (or 58805 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 220420013 is about 14846.5488582364. The cubic root of 220420013 is about 604.0650020317.

Adding to 220420013 its reverse (310024022), we get a palindrome (530444035).

The spelling of 220420013 in words is "two hundred twenty million, four hundred twenty thousand, thirteen".