381379929 has 8 divisors (see below), whose sum is σ = 581150400. Its totient is φ = 217931376.

The previous prime is 381379919. The next prime is 381379969. The reversal of 381379929 is 929973183.

It is a happy number.

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

It is not a de Polignac number, because 381379929 - 2⁵ = 381379897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381379919) 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, 9080454 + ... + 9080495.

It is an arithmetic number, because the mean of its divisors is an integer number (72643800).

Almost surely, 2^381379929 is an apocalyptic number.

It is an amenable number.

381379929 is a deficient number, since it is larger than the sum of its proper divisors (199770471).

381379929 is a wasteful number, since it uses less digits than its factorization.

381379929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18160959.

The product of its digits is 734832, while the sum is 51.

The square root of 381379929 is about 19528.9510470993. The cubic root of 381379929 is about 725.1913432335.

The spelling of 381379929 in words is "three hundred eighty-one million, three hundred seventy-nine thousand, nine hundred twenty-nine".