1868140286 has 8 divisors (see below), whose sum is σ = 2877945960. Its totient is φ = 908824968.

The previous prime is 1868140283. The next prime is 1868140301. The reversal of 1868140286 is 6820418681.

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 (1868140283) 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, 12622496 + ... + 12622643.

It is an arithmetic number, because the mean of its divisors is an integer number (359743245).

Almost surely, 2^1868140286 is an apocalyptic number.

1868140286 is a deficient number, since it is larger than the sum of its proper divisors (1009805674).

1868140286 is a wasteful number, since it uses less digits than its factorization.

1868140286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25245178.

The product of its (nonzero) digits is 147456, while the sum is 44.

The square root of 1868140286 is about 43221.9884549520. The cubic root of 1868140286 is about 1231.6004209420.

The spelling of 1868140286 in words is "one billion, eight hundred sixty-eight million, one hundred forty thousand, two hundred eighty-six".