288360228 has 96 divisors (see below), whose sum is σ = 752338944. Its totient is φ = 85396608.

The previous prime is 288360221. The next prime is 288360313. The reversal of 288360228 is 822063882.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (288360221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 490951 + ... + 491537.

It is an arithmetic number, because the mean of its divisors is an integer number (7836864).

Almost surely, 2^288360228 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 288360228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376169472).

288360228 is an abundant number, since it is smaller than the sum of its proper divisors (463978716).

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

288360228 is a wasteful number, since it uses less digits than its factorization.

288360228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 288360228 is about 16981.1727510205. The cubic root of 288360228 is about 660.6606699356.

The spelling of 288360228 in words is "two hundred eighty-eight million, three hundred sixty thousand, two hundred twenty-eight".