381229683844 has 27 divisors (see below), whose sum is σ = 672288827301. Its totient is φ = 189158305680.

The previous prime is 381229683817. The next prime is 381229683869. The reversal of 381229683844 is 448386922183.

It is a happy number.

The square root of 381229683844 is 617438.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 258533605444 + 122696078400 = 508462^2 + 350280^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 171646654 + ... + 171648874.

Almost surely, 2^381229683844 is an apocalyptic number.

381229683844 is the 617438-th square number.

It is an amenable number.

381229683844 is a deficient number, since it is larger than the sum of its proper divisors (291059143457).

381229683844 is an frugal number, since it uses more digits than its factorization.

381229683844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4724 (or 2362 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 58.

The spelling of 381229683844 in words is "three hundred eighty-one billion, two hundred twenty-nine million, six hundred eighty-three thousand, eight hundred forty-four".