288220245 has 16 divisors (see below), whose sum is σ = 481203072. Its totient is φ = 147033920.

The previous prime is 288220243. The next prime is 288220267. The reversal of 288220245 is 542022882.

It is not a de Polignac number, because 288220245 - 2¹ = 288220243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288220243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417366 + ... + 418055.

It is an arithmetic number, because the mean of its divisors is an integer number (30075192).

Almost surely, 2^288220245 is an apocalyptic number.

It is an amenable number.

288220245 is a deficient number, since it is larger than the sum of its proper divisors (192982827).

288220245 is a wasteful number, since it uses less digits than its factorization.

288220245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835452.

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 288220245 is about 16977.0505388893. The cubic root of 288220245 is about 660.5537478494.

The spelling of 288220245 in words is "two hundred eighty-eight million, two hundred twenty thousand, two hundred forty-five".