381993174 has 12 divisors (see below), whose sum is σ = 827651916. Its totient is φ = 127331052.

The previous prime is 381993173. The next prime is 381993193. The reversal of 381993174 is 471399183.

381993174 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381993173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10610904 + ... + 10610939.

It is an arithmetic number, because the mean of its divisors is an integer number (68970993).

Almost surely, 2^381993174 is an apocalyptic number.

381993174 is an abundant number, since it is smaller than the sum of its proper divisors (445658742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381993174 is a wasteful number, since it uses less digits than its factorization.

381993174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21221851 (or 21221848 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 381993174 is about 19544.6456606407. The cubic root of 381993174 is about 725.5798288177.

The spelling of 381993174 in words is "three hundred eighty-one million, nine hundred ninety-three thousand, one hundred seventy-four".