220240245 has 16 divisors (see below), whose sum is σ = 354425472. Its totient is φ = 116781120.

The previous prime is 220240231. The next prime is 220240247. The reversal of 220240245 is 542042022.

It is not a de Polignac number, because 220240245 - 2¹¹ = 220238197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220240247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39841 + ... + 45030.

It is an arithmetic number, because the mean of its divisors is an integer number (22151592).

Almost surely, 2^220240245 is an apocalyptic number.

It is an amenable number.

220240245 is a deficient number, since it is larger than the sum of its proper divisors (134185227).

220240245 is a wasteful number, since it uses less digits than its factorization.

220240245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85052.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 220240245 is about 14840.4934217161. The cubic root of 220240245 is about 603.9007382238.

Adding to 220240245 its reverse (542042022), we get a palindrome (762282267).

The spelling of 220240245 in words is "two hundred twenty million, two hundred forty thousand, two hundred forty-five".