288775289240 has 128 divisors (see below), whose sum is σ = 698156184960. Its totient is φ = 107108204544.

The previous prime is 288775289221. The next prime is 288775289261. The reversal of 288775289240 is 42982577882.

It is a congruent number.

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, 54452429 + ... + 54457731.

It is an arithmetic number, because the mean of its divisors is an integer number (5454345195).

Almost surely, 2^288775289240 is an apocalyptic number.

288775289240 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 288775289240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349078092480).

288775289240 is an abundant number, since it is smaller than the sum of its proper divisors (409380895720).

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

288775289240 is a wasteful number, since it uses less digits than its factorization.

288775289240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6501 (or 6497 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 62.

The spelling of 288775289240 in words is "two hundred eighty-eight billion, seven hundred seventy-five million, two hundred eighty-nine thousand, two hundred forty".