288857260 has 12 divisors (see below), whose sum is σ = 606600288. Its totient is φ = 115542896.

The previous prime is 288857203. The next prime is 288857263. The reversal of 288857260 is 62758882.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 288857260.

It is not an unprimeable number, because it can be changed into a prime (288857263) 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, 7221412 + ... + 7221451.

It is an arithmetic number, because the mean of its divisors is an integer number (50550024).

Almost surely, 2^288857260 is an apocalyptic number.

288857260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

288857260 is an abundant number, since it is smaller than the sum of its proper divisors (317743028).

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

288857260 is a wasteful number, since it uses less digits than its factorization.

288857260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14442872 (or 14442870 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 46.

The square root of 288857260 is about 16995.8012461902. The cubic root of 288857260 is about 661.0400345613.

The spelling of 288857260 in words is "two hundred eighty-eight million, eight hundred fifty-seven thousand, two hundred sixty".