381164268 has 24 divisors (see below), whose sum is σ = 893903472. Its totient is φ = 126409024.

The previous prime is 381164261. The next prime is 381164279. The reversal of 381164268 is 862461183.

It is not an unprimeable number, because it can be changed into a prime (381164261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78255 + ... + 82982.

It is an arithmetic number, because the mean of its divisors is an integer number (37245978).

Almost surely, 2^381164268 is an apocalyptic number.

It is an amenable number.

381164268 is an abundant number, since it is smaller than the sum of its proper divisors (512739204).

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

381164268 is a wasteful number, since it uses less digits than its factorization.

381164268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161441 (or 161439 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 381164268 is about 19523.4286947759. The cubic root of 381164268 is about 725.0546248180.

The spelling of 381164268 in words is "three hundred eighty-one million, one hundred sixty-four thousand, two hundred sixty-eight".