288488916 has 18 divisors (see below), whose sum is σ = 729235962. Its totient is φ = 96162960.

The previous prime is 288488909. The next prime is 288488917. The reversal of 288488916 is 619884882.

It can be written as a sum of positive squares in only one way, i.e., 226803600 + 61685316 = 15060^2 + 7854^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288488917) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4006755 + ... + 4006826.

It is an arithmetic number, because the mean of its divisors is an integer number (40513109).

Almost surely, 2^288488916 is an apocalyptic number.

It is an amenable number.

288488916 is an abundant number, since it is smaller than the sum of its proper divisors (440747046).

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

288488916 is a wasteful number, since it uses less digits than its factorization.

288488916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8013591 (or 8013586 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 54.

The square root of 288488916 is about 16984.9614659557. The cubic root of 288488916 is about 660.7589341295.

The spelling of 288488916 in words is "two hundred eighty-eight million, four hundred eighty-eight thousand, nine hundred sixteen".