381488286 has 8 divisors (see below), whose sum is σ = 762976584. Its totient is φ = 127162760.

The previous prime is 381488267. The next prime is 381488321. The reversal of 381488286 is 682884183.

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

381488286 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31790685 + ... + 31790696.

It is an arithmetic number, because the mean of its divisors is an integer number (95372073).

Almost surely, 2^381488286 is an apocalyptic number.

381488286 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381488286 is a wasteful number, since it uses less digits than its factorization.

381488286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63581386.

The product of its digits is 589824, while the sum is 48.

The square root of 381488286 is about 19531.7251158212. The cubic root of 381488286 is about 725.2600167632.

The spelling of 381488286 in words is "three hundred eighty-one million, four hundred eighty-eight thousand, two hundred eighty-six".