288239488 has 64 divisors (see below), whose sum is σ = 627765120. Its totient is φ = 131235840.

The previous prime is 288239467. The next prime is 288239503. The reversal of 288239488 is 884932882.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-5 number, since 5×288239488⁵ (a number of 43 digits) contains 55555 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65320 + ... + 69592.

It is an arithmetic number, because the mean of its divisors is an integer number (9808830).

Almost surely, 2^288239488 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 288239488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313882560).

288239488 is an abundant number, since it is smaller than the sum of its proper divisors (339525632).

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

288239488 is a wasteful number, since it uses less digits than its factorization.

288239488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4335 (or 4323 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 52.

The square root of 288239488 is about 16977.6172650935. The cubic root of 288239488 is about 660.5684481271.

The spelling of 288239488 in words is "two hundred eighty-eight million, two hundred thirty-nine thousand, four hundred eighty-eight".