287902288 has 40 divisors (see below), whose sum is σ = 588975200. Its totient is φ = 135955584.

The previous prime is 287902267. The next prime is 287902289. The reversal of 287902288 is 882209782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287902289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112123 + ... + 114661.

It is an arithmetic number, because the mean of its divisors is an integer number (14724380).

Almost surely, 2^287902288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 287902288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294487600).

287902288 is an abundant number, since it is smaller than the sum of its proper divisors (301072912).

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

287902288 is a wasteful number, since it uses less digits than its factorization.

287902288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939 (or 2933 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 287902288 is about 16967.6836368433. The cubic root of 287902288 is about 660.3107566284.

The spelling of 287902288 in words is "two hundred eighty-seven million, nine hundred two thousand, two hundred eighty-eight".