286643049 has 32 divisors (see below), whose sum is σ = 480992256. Its totient is φ = 147501120.

The previous prime is 286643039. The next prime is 286643053. The reversal of 286643049 is 940346682.

It is a happy number.

It is not a de Polignac number, because 286643049 - 2⁵ = 286643017 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 286643049.

It is not an unprimeable number, because it can be changed into a prime (286643039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18919 + ... + 30515.

It is an arithmetic number, because the mean of its divisors is an integer number (15031008).

Almost surely, 2^286643049 is an apocalyptic number.

It is an amenable number.

286643049 is a deficient number, since it is larger than the sum of its proper divisors (194349207).

286643049 is a wasteful number, since it uses less digits than its factorization.

286643049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11725.

The product of its (nonzero) digits is 248832, while the sum is 42.

The square root of 286643049 is about 16930.5359926967. The cubic root of 286643049 is about 659.3466514290.

It can be divided in two parts, 28664 and 3049, that added together give a palindrome (31713).

The spelling of 286643049 in words is "two hundred eighty-six million, six hundred forty-three thousand, forty-nine".