381345268 has 12 divisors (see below), whose sum is σ = 667519552. Its totient is φ = 190625400.

The previous prime is 381345259. The next prime is 381345271. The reversal of 381345268 is 862543183.

381345268 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

381345268 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 381345268.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11443 + ... + 29893.

Almost surely, 2^381345268 is an apocalyptic number.

It is an amenable number.

381345268 is a deficient number, since it is larger than the sum of its proper divisors (286174284).

381345268 is a wasteful number, since it uses less digits than its factorization.

381345268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23622 (or 23620 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 381345268 is about 19528.0636008796. The cubic root of 381345268 is about 725.1693733493.

The spelling of 381345268 in words is "three hundred eighty-one million, three hundred forty-five thousand, two hundred sixty-eight".