288828930 has 64 divisors (see below), whose sum is σ = 748395648. Its totient is φ = 70917120.

The previous prime is 288828907. The next prime is 288828949. The reversal of 288828930 is 39828882.

It is a self number, because there is not a number n which added to its sum of digits gives 288828930.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 222042 + ... + 223338.

It is an arithmetic number, because the mean of its divisors is an integer number (11693682).

Almost surely, 2^288828930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 288828930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374197824).

288828930 is an abundant number, since it is smaller than the sum of its proper divisors (459566718).

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

288828930 is a wasteful number, since it uses less digits than its factorization.

288828930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891.

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 288828930 is about 16994.9677846120. The cubic root of 288828930 is about 661.0184231070.

Subtracting from 288828930 its sum of digits (48), we obtain a palindrome (288828882).

The spelling of 288828930 in words is "two hundred eighty-eight million, eight hundred twenty-eight thousand, nine hundred thirty".