381944126 has 4 divisors (see below), whose sum is σ = 572916192. Its totient is φ = 190972062.

The previous prime is 381944113. The next prime is 381944131. The reversal of 381944126 is 621449183.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 381944126.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95486030 + ... + 95486033.

It is an arithmetic number, because the mean of its divisors is an integer number (143229048).

Almost surely, 2^381944126 is an apocalyptic number.

381944126 is a deficient number, since it is larger than the sum of its proper divisors (190972066).

381944126 is a wasteful number, since it uses less digits than its factorization.

381944126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190972065.

The product of its digits is 41472, while the sum is 38.

The square root of 381944126 is about 19543.3908521526. The cubic root of 381944126 is about 725.5487726234.

The spelling of 381944126 in words is "three hundred eighty-one million, nine hundred forty-four thousand, one hundred twenty-six".