286239742 has 8 divisors (see below), whose sum is σ = 429487416. Its totient is φ = 143077272.

The previous prime is 286239719. The next prime is 286239749. The reversal of 286239742 is 247932682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286239749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12108 + ... + 26815.

It is an arithmetic number, because the mean of its divisors is an integer number (53685927).

Almost surely, 2^286239742 is an apocalyptic number.

286239742 is a deficient number, since it is larger than the sum of its proper divisors (143247674).

286239742 is a wasteful number, since it uses less digits than its factorization.

286239742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42602.

The product of its digits is 290304, while the sum is 43.

The square root of 286239742 is about 16918.6211613122. The cubic root of 286239742 is about 659.0372725289.

The spelling of 286239742 in words is "two hundred eighty-six million, two hundred thirty-nine thousand, seven hundred forty-two".