285244899 has 16 divisors (see below), whose sum is σ = 393880320. Its totient is φ = 183401120.

The previous prime is 285244871. The next prime is 285244901. The reversal of 285244899 is 998442582.

It is a cyclic number.

It is not a de Polignac number, because 285244899 - 2¹⁵ = 285212131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (285244829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135634 + ... + 137720.

It is an arithmetic number, because the mean of its divisors is an integer number (24617520).

Almost surely, 2^285244899 is an apocalyptic number.

285244899 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

285244899 is a deficient number, since it is larger than the sum of its proper divisors (108635421).

285244899 is a wasteful number, since it uses less digits than its factorization.

285244899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3690.

The product of its digits is 1658880, while the sum is 51.

The square root of 285244899 is about 16889.1947410171. The cubic root of 285244899 is about 658.2728787229.

The spelling of 285244899 in words is "two hundred eighty-five million, two hundred forty-four thousand, eight hundred ninety-nine".