381713349 has 16 divisors (see below), whose sum is σ = 523670400. Its totient is φ = 247141440.

The previous prime is 381713347. The next prime is 381713357. The reversal of 381713349 is 943317183.

It is a happy number.

It is not a de Polignac number, because 381713349 - 2¹ = 381713347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381713347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63619 + ... + 69359.

It is an arithmetic number, because the mean of its divisors is an integer number (32729400).

Almost surely, 2^381713349 is an apocalyptic number.

It is an amenable number.

381713349 is a deficient number, since it is larger than the sum of its proper divisors (141957051).

381713349 is a wasteful number, since it uses less digits than its factorization.

381713349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6380.

The product of its digits is 54432, while the sum is 39.

The square root of 381713349 is about 19537.4857389583. The cubic root of 381713349 is about 725.4026136328.

The spelling of 381713349 in words is "three hundred eighty-one million, seven hundred thirteen thousand, three hundred forty-nine".