220020245 has 16 divisors (see below), whose sum is σ = 273611520. Its totient is φ = 169646400.

The previous prime is 220020233. The next prime is 220020289. The reversal of 220020245 is 542020022.

It is not a de Polignac number, because 220020245 - 2²² = 215825941 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116660 + ... + 118530.

It is an arithmetic number, because the mean of its divisors is an integer number (17100720).

Almost surely, 2^220020245 is an apocalyptic number.

It is an amenable number.

220020245 is a deficient number, since it is larger than the sum of its proper divisors (53591275).

220020245 is a wasteful number, since it uses less digits than its factorization.

220020245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2716.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 220020245 is about 14833.0794173024. The cubic root of 220020245 is about 603.6995905714.

Adding to 220020245 its reverse (542020022), we get a palindrome (762040267).

The spelling of 220020245 in words is "two hundred twenty million, twenty thousand, two hundred forty-five".