381376869 has 12 divisors (see below), whose sum is σ = 530837088. Its totient is φ = 243093400.

The previous prime is 381376867. The next prime is 381376889. The reversal of 381376869 is 968673183.

It is not a de Polignac number, because 381376869 - 2¹ = 381376867 is a prime.

It is a super-2 number, since 2×381376869² = 290896632416486322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381376867) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 161044 + ... + 163394.

It is an arithmetic number, because the mean of its divisors is an integer number (44236424).

Almost surely, 2^381376869 is an apocalyptic number.

It is an amenable number.

381376869 is a deficient number, since it is larger than the sum of its proper divisors (149460219).

381376869 is an frugal number, since it uses more digits than its factorization.

381376869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4728 (or 2377 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 51.

The square root of 381376869 is about 19528.8727017204. The cubic root of 381376869 is about 725.1894037053.

The spelling of 381376869 in words is "three hundred eighty-one million, three hundred seventy-six thousand, eight hundred sixty-nine".