288749285 has 8 divisors (see below), whose sum is σ = 377999136. Its totient is φ = 209999440.

The previous prime is 288749269. The next prime is 288749299. The reversal of 288749285 is 582947882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 288749285 - 2⁴ = 288749269 is a prime.

It is a super-2 number, since 2×288749285² = 166752299176022450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2624939 + ... + 2625048.

It is an arithmetic number, because the mean of its divisors is an integer number (47249892).

Almost surely, 2^288749285 is an apocalyptic number.

It is an amenable number.

288749285 is a deficient number, since it is larger than the sum of its proper divisors (89249851).

288749285 is a wasteful number, since it uses less digits than its factorization.

288749285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5250003.

The product of its digits is 2580480, while the sum is 53.

The square root of 288749285 is about 16992.6244294400. The cubic root of 288749285 is about 660.9576585889.

The spelling of 288749285 in words is "two hundred eighty-eight million, seven hundred forty-nine thousand, two hundred eighty-five".