288791244 has 120 divisors (see below), whose sum is σ = 868195328. Its totient is φ = 81997920.

The previous prime is 288791227. The next prime is 288791267. The reversal of 288791244 is 442197882.

It is a super-2 number, since 2×288791244² = 166800765222135072, which contains 22 as substring.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 288791244.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 505479 + ... + 506049.

Almost surely, 2^288791244 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 288791244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (434097664).

288791244 is an abundant number, since it is smaller than the sum of its proper divisors (579404084).

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

288791244 is a wasteful number, since it uses less digits than its factorization.

288791244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817 (or 806 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 288791244 is about 16993.8590084772. The cubic root of 288791244 is about 660.9896722661.

The spelling of 288791244 in words is "two hundred eighty-eight million, seven hundred ninety-one thousand, two hundred forty-four".