380857286 has 8 divisors (see below), whose sum is σ = 578169144. Its totient is φ = 188134240.

The previous prime is 380857249. The next prime is 380857291. The reversal of 380857286 is 682758083.

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

It is a self number, because there is not a number n which added to its sum of digits gives 380857286.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1146995 + ... + 1147326.

It is an arithmetic number, because the mean of its divisors is an integer number (72271143).

Almost surely, 2^380857286 is an apocalyptic number.

380857286 is a deficient number, since it is larger than the sum of its proper divisors (197311858).

380857286 is a wasteful number, since it uses less digits than its factorization.

380857286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294406.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 380857286 is about 19515.5652236875. The cubic root of 380857286 is about 724.8599244244.

The spelling of 380857286 in words is "three hundred eighty million, eight hundred fifty-seven thousand, two hundred eighty-six".