220246013 has 8 divisors (see below), whose sum is σ = 237896568. Its totient is φ = 202696704.

The previous prime is 220246009. The next prime is 220246027. The reversal of 220246013 is 310642022.

It can be written as a sum of positive squares in 4 ways, for example, as 4214809 + 216031204 = 2053^2 + 14698^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 220246013 - 2² = 220246009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220246513) 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 7 ways as a sum of consecutive naturals, for example, 20756 + ... + 29517.

It is an arithmetic number, because the mean of its divisors is an integer number (29737071).

Almost surely, 2^220246013 is an apocalyptic number.

It is an amenable number.

220246013 is a deficient number, since it is larger than the sum of its proper divisors (17650555).

220246013 is a wasteful number, since it uses less digits than its factorization.

220246013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50623.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 220246013 is about 14840.6877536050. The cubic root of 220246013 is about 603.9060101471.

Adding to 220246013 its reverse (310642022), we get a palindrome (530888035).

The spelling of 220246013 in words is "two hundred twenty million, two hundred forty-six thousand, thirteen".