381672319 has 12 divisors (see below), whose sum is σ = 444307248. Its totient is φ = 326911200.

The previous prime is 381672311. The next prime is 381672337. The reversal of 381672319 is 913276183.

It is not a de Polignac number, because 381672319 - 2³ = 381672311 is a prime.

It is a super-2 number, since 2×381672319² = 291347518181675522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381672311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118014 + ... + 121204.

It is an arithmetic number, because the mean of its divisors is an integer number (37025604).

Almost surely, 2^381672319 is an apocalyptic number.

381672319 is a deficient number, since it is larger than the sum of its proper divisors (62634929).

381672319 is a wasteful number, since it uses less digits than its factorization.

381672319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5646 (or 5639 counting only the distinct ones).

The product of its digits is 54432, while the sum is 40.

The square root of 381672319 is about 19536.4356779838. The cubic root of 381672319 is about 725.3766217589.

The spelling of 381672319 in words is "three hundred eighty-one million, six hundred seventy-two thousand, three hundred nineteen".