288256269 has 24 divisors (see below), whose sum is σ = 449096160. Its totient is φ = 163979424.

The previous prime is 288256249. The next prime is 288256271. The reversal of 288256269 is 962652882.

It is not a de Polignac number, because 288256269 - 2¹⁵ = 288223501 is a prime.

It is a super-2 number, since 2×288256269² = 166183353235600722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288256229) 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 23 ways as a sum of consecutive naturals, for example, 29382 + ... + 37944.

It is an arithmetic number, because the mean of its divisors is an integer number (18712340).

Almost surely, 2^288256269 is an apocalyptic number.

It is an amenable number.

288256269 is a deficient number, since it is larger than the sum of its proper divisors (160839891).

288256269 is a wasteful number, since it uses less digits than its factorization.

288256269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8809 (or 8802 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 288256269 is about 16978.1114674159. Note that the first 3 decimals coincide. The cubic root of 288256269 is about 660.5812670785.

The spelling of 288256269 in words is "two hundred eighty-eight million, two hundred fifty-six thousand, two hundred sixty-nine".