288815064 has 24 divisors (see below), whose sum is σ = 722245860. Its totient is φ = 96243936.

The previous prime is 288815063. The next prime is 288815077. The reversal of 288815064 is 460518882.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288815063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 81522 + ... + 84990.

Almost surely, 2^288815064 is an apocalyptic number.

288815064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

288815064 is an abundant number, since it is smaller than the sum of its proper divisors (433430796).

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

288815064 is an frugal number, since it uses more digits than its factorization.

288815064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6947 (or 3474 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 42.

The square root of 288815064 is about 16994.5598354297. The cubic root of 288815064 is about 661.0078449559.

The spelling of 288815064 in words is "two hundred eighty-eight million, eight hundred fifteen thousand, sixty-four".