286244385 has 48 divisors (see below), whose sum is σ = 556077696. Its totient is φ = 123144192.

The previous prime is 286244369. The next prime is 286244389. The reversal of 286244385 is 583442682.

It is not a de Polignac number, because 286244385 - 2⁴ = 286244369 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (286244389) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25629 + ... + 35061.

It is an arithmetic number, because the mean of its divisors is an integer number (11584952).

Almost surely, 2^286244385 is an apocalyptic number.

It is an amenable number.

286244385 is a deficient number, since it is larger than the sum of its proper divisors (269833311).

286244385 is a wasteful number, since it uses less digits than its factorization.

286244385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9482 (or 9465 counting only the distinct ones).

The product of its digits is 368640, while the sum is 42.

The square root of 286244385 is about 16918.7583764294. The cubic root of 286244385 is about 659.0408358514.

The spelling of 286244385 in words is "two hundred eighty-six million, two hundred forty-four thousand, three hundred eighty-five".