381944 has 8 divisors (see below), whose sum is σ = 716160. Its totient is φ = 190968.

The previous prime is 381943. The next prime is 381949. The reversal of 381944 is 449183.

381944 = T₃₀₅ + T₃₀₆ + ... + T₃₁₂.

381944 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23864 + ... + 23879.

It is an arithmetic number, because the mean of its divisors is an integer number (89520).

2³⁸¹⁹⁴⁴ is an apocalyptic number.

It is an amenable number.

381944 is a deficient number, since it is larger than the sum of its proper divisors (334216).

381944 is a wasteful number, since it uses less digits than its factorization.

381944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47749 (or 47745 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 381944 is about 618.0161810179. The cubic root of 381944 is about 72.5548692839.

The spelling of 381944 in words is "three hundred eighty-one thousand, nine hundred forty-four".