381399367 has 8 divisors (see below), whose sum is σ = 392564016. Its totient is φ = 370279872.

The previous prime is 381399349. The next prime is 381399371. The reversal of 381399367 is 763993183.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381399367 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 381399367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381399397) 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 7 ways as a sum of consecutive naturals, for example, 6243 + ... + 28315.

It is an arithmetic number, because the mean of its divisors is an integer number (49070502).

Almost surely, 2^381399367 is an apocalyptic number.

381399367 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

381399367 is a deficient number, since it is larger than the sum of its proper divisors (11164649).

381399367 is a wasteful number, since it uses less digits than its factorization.

381399367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22577.

The product of its digits is 734832, while the sum is 49.

The square root of 381399367 is about 19529.4487121373. The cubic root of 381399367 is about 725.2036634325.

The spelling of 381399367 in words is "three hundred eighty-one million, three hundred ninety-nine thousand, three hundred sixty-seven".