220020413 has 4 divisors (see below), whose sum is σ = 220064988. Its totient is φ = 219975840.

The previous prime is 220020401. The next prime is 220020421. The reversal of 220020413 is 314020022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59567524 + 160452889 = 7718^2 + 12667^2 .

It is a cyclic number.

It is not a de Polignac number, because 220020413 - 2⁴ = 220020397 is a prime.

It is a super-3 number, since 3×220020413³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220020433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13808 + ... + 25113.

It is an arithmetic number, because the mean of its divisors is an integer number (55016247).

Almost surely, 2^220020413 is an apocalyptic number.

It is an amenable number.

220020413 is a deficient number, since it is larger than the sum of its proper divisors (44575).

220020413 is an equidigital number, since it uses as much as digits as its factorization.

220020413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44574.

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

The square root of 220020413 is about 14833.0850803196. The cubic root of 220020413 is about 603.6997442262.

Adding to 220020413 its reverse (314020022), we get a palindrome (534040435).

The spelling of 220020413 in words is "two hundred twenty million, twenty thousand, four hundred thirteen".