2288285 has 8 divisors (see below), whose sum is σ = 2907576. Its totient is φ = 1722880.

The previous prime is 2288281. The next prime is 2288287. The reversal of 2288285 is 5828822.

It can be written as a sum of positive squares in 4 ways, for example, as 1249924 + 1038361 = 1118^2 + 1019^2 .

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

It is not a de Polignac number, because 2288285 - 2² = 2288281 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2288281) 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, 13376 + ... + 13545.

It is an arithmetic number, because the mean of its divisors is an integer number (363447).

2^2288285 is an apocalyptic number.

It is an amenable number.

2288285 is a deficient number, since it is larger than the sum of its proper divisors (619291).

2288285 is a wasteful number, since it uses less digits than its factorization.

2288285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26943.

The product of its digits is 20480, while the sum is 35.

The square root of 2288285 is about 1512.7078369599. The cubic root of 2288285 is about 131.7761165096.

The spelling of 2288285 in words is "two million, two hundred eighty-eight thousand, two hundred eighty-five".