11865288 has 16 divisors (see below), whose sum is σ = 29663280. Its totient is φ = 3955088.

The previous prime is 11865257. The next prime is 11865289. The reversal of 11865288 is 88256811.

It is not an unprimeable number, because it can be changed into a prime (11865289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247170 + ... + 247217.

It is an arithmetic number, because the mean of its divisors is an integer number (1853955).

Almost surely, 2^11865288 is an apocalyptic number.

It is an amenable number.

11865288 is an abundant number, since it is smaller than the sum of its proper divisors (17797992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11865288 is a wasteful number, since it uses less digits than its factorization.

11865288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494396 (or 494392 counting only the distinct ones).

The product of its digits is 30720, while the sum is 39.

The square root of 11865288 is about 3444.6027347141. The cubic root of 11865288 is about 228.0829184404.

The spelling of 11865288 in words is "eleven million, eight hundred sixty-five thousand, two hundred eighty-eight".