288822265 has 12 divisors (see below), whose sum is σ = 368175276. Its totient is φ = 217465088.

The previous prime is 288822263. The next prime is 288822277. The reversal of 288822265 is 562228882.

It can be written as a sum of positive squares in 6 ways, for example, as 78340201 + 210482064 = 8851^2 + 14508^2 .

It is not a de Polignac number, because 288822265 - 2¹ = 288822263 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (288822263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98494 + ... + 101383.

It is an arithmetic number, because the mean of its divisors is an integer number (30681273).

Almost surely, 2^288822265 is an apocalyptic number.

It is an amenable number.

288822265 is a deficient number, since it is larger than the sum of its proper divisors (79353011).

288822265 is a wasteful number, since it uses less digits than its factorization.

288822265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199916 (or 199899 counting only the distinct ones).

The product of its digits is 245760, while the sum is 43.

The square root of 288822265 is about 16994.7716960246. The cubic root of 288822265 is about 661.0133385266.

The spelling of 288822265 in words is "two hundred eighty-eight million, eight hundred twenty-two thousand, two hundred sixty-five".