288218880 has 216 divisors, whose sum is σ = 1010161152. Its totient is φ = 75866112.

The previous prime is 288218837. The next prime is 288218881. The reversal of 288218880 is 88812882.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288218881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1462942 + ... + 1463138.

It is an arithmetic number, because the mean of its divisors is an integer number (4676672).

Almost surely, 2^288218880 is an apocalyptic number.

288218880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 288218880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (505080576).

288218880 is an abundant number, since it is smaller than the sum of its proper divisors (721942272).

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

288218880 is a wasteful number, since it uses less digits than its factorization.

288218880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 45.

The square root of 288218880 is about 16977.0103375123. The cubic root of 288218880 is about 660.5527050620.

The spelling of 288218880 in words is "two hundred eighty-eight million, two hundred eighteen thousand, eight hundred eighty".