381935444 has 24 divisors (see below), whose sum is σ = 730869888. Its totient is φ = 173197440.

The previous prime is 381935441. The next prime is 381935467. The reversal of 381935444 is 444539183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381935441) 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, 9029 + ... + 29075.

It is an arithmetic number, because the mean of its divisors is an integer number (30452912).

Almost surely, 2^381935444 is an apocalyptic number.

It is an amenable number.

381935444 is a deficient number, since it is larger than the sum of its proper divisors (348934444).

381935444 is a wasteful number, since it uses less digits than its factorization.

381935444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20495 (or 20493 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 381935444 is about 19543.1687297633. The cubic root of 381935444 is about 725.5432750809.

The spelling of 381935444 in words is "three hundred eighty-one million, nine hundred thirty-five thousand, four hundred forty-four".