285013269 has 8 divisors (see below), whose sum is σ = 422241920. Its totient is φ = 190008828.

The previous prime is 285013249. The next prime is 285013271. The reversal of 285013269 is 962310582.

It is not a de Polignac number, because 285013269 - 2⁵ = 285013237 is a prime.

It is a super-2 number, since 2×285013269² = 162465127012132722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285013219) 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, 5277997 + ... + 5278050.

It is an arithmetic number, because the mean of its divisors is an integer number (52780240).

Almost surely, 2^285013269 is an apocalyptic number.

It is an amenable number.

285013269 is a deficient number, since it is larger than the sum of its proper divisors (137228651).

285013269 is a wasteful number, since it uses less digits than its factorization.

285013269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10556056 (or 10556050 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 285013269 is about 16882.3360054229. The cubic root of 285013269 is about 658.0946493743.

The spelling of 285013269 in words is "two hundred eighty-five million, thirteen thousand, two hundred sixty-nine".