381816748 has 6 divisors (see below), whose sum is σ = 668179316. Its totient is φ = 190908372.

The previous prime is 381816713. The next prime is 381816749. The reversal of 381816748 is 847618183.

381816748 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 381816698 and 381816707.

It is not an unprimeable number, because it can be changed into a prime (381816749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47727090 + ... + 47727097.

Almost surely, 2^381816748 is an apocalyptic number.

It is an amenable number.

381816748 is a deficient number, since it is larger than the sum of its proper divisors (286362568).

381816748 is a wasteful number, since it uses less digits than its factorization.

381816748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95454191 (or 95454189 counting only the distinct ones).

The product of its digits is 258048, while the sum is 46.

The square root of 381816748 is about 19540.1317293410. The cubic root of 381816748 is about 725.4681070486.

The spelling of 381816748 in words is "three hundred eighty-one million, eight hundred sixteen thousand, seven hundred forty-eight".