286242189 has 16 divisors (see below), whose sum is σ = 394689024. Its totient is φ = 184334400.

The previous prime is 286242137. The next prime is 286242191. The reversal of 286242189 is 981242682.

It is not a de Polignac number, because 286242189 - 2⁸ = 286241933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 286242189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286242289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54499 + ... + 59519.

It is an arithmetic number, because the mean of its divisors is an integer number (24668064).

Almost surely, 2^286242189 is an apocalyptic number.

It is an amenable number.

286242189 is a deficient number, since it is larger than the sum of its proper divisors (108446835).

286242189 is a wasteful number, since it uses less digits than its factorization.

286242189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5668.

The product of its digits is 110592, while the sum is 42.

The square root of 286242189 is about 16918.6934779255. The cubic root of 286242189 is about 659.0391505114.

The spelling of 286242189 in words is "two hundred eighty-six million, two hundred forty-two thousand, one hundred eighty-nine".