286240493 has 8 divisors (see below), whose sum is σ = 356871360. Its totient is φ = 223044480.

The previous prime is 286240489. The next prime is 286240499. The reversal of 286240493 is 394042682.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 286240493 - 2² = 286240489 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286240499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1858628 + ... + 1858781.

It is an arithmetic number, because the mean of its divisors is an integer number (44608920).

Almost surely, 2^286240493 is an apocalyptic number.

It is an amenable number.

286240493 is a deficient number, since it is larger than the sum of its proper divisors (70630867).

286240493 is a wasteful number, since it uses less digits than its factorization.

286240493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3717427.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 286240493 is about 16918.6433557777. The cubic root of 286240493 is about 659.0378488949.

The spelling of 286240493 in words is "two hundred eighty-six million, two hundred forty thousand, four hundred ninety-three".