288402285 has 8 divisors (see below), whose sum is σ = 461443680. Its totient is φ = 153814544.

The previous prime is 288402281. The next prime is 288402307. The reversal of 288402285 is 582204882.

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

It is a cyclic number.

It is not a de Polignac number, because 288402285 - 2² = 288402281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288402281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9613395 + ... + 9613424.

It is an arithmetic number, because the mean of its divisors is an integer number (57680460).

Almost surely, 2^288402285 is an apocalyptic number.

It is an amenable number.

288402285 is a deficient number, since it is larger than the sum of its proper divisors (173041395).

288402285 is a wasteful number, since it uses less digits than its factorization.

288402285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19226827.

The product of its (nonzero) digits is 81920, while the sum is 39.

The square root of 288402285 is about 16982.4110479048. The cubic root of 288402285 is about 660.6927872347.

It can be divided in two parts, 28840 and 2285, that added together give a triangular number (31125 = T₂₄₉).

The spelling of 288402285 in words is "two hundred eighty-eight million, four hundred two thousand, two hundred eighty-five".