220444245 has 24 divisors (see below), whose sum is σ = 436690176. Its totient is φ = 100774368.

The previous prime is 220444243. The next prime is 220444303. The reversal of 220444245 is 542444022.

It is not a de Polignac number, because 220444245 - 2¹ = 220444243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220444243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 349597 + ... + 350226.

It is an arithmetic number, because the mean of its divisors is an integer number (18195424).

Almost surely, 2^220444245 is an apocalyptic number.

It is an amenable number.

220444245 is a deficient number, since it is larger than the sum of its proper divisors (216245931).

220444245 is a wasteful number, since it uses less digits than its factorization.

220444245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699841 (or 699838 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 220444245 is about 14847.3649177219. The cubic root of 220444245 is about 604.0871372975.

Adding to 220444245 its reverse (542444022), we get a palindrome (762888267).

The spelling of 220444245 in words is "two hundred twenty million, four hundred forty-four thousand, two hundred forty-five".