381463834 has 4 divisors (see below), whose sum is σ = 572195754. Its totient is φ = 190731916.

The previous prime is 381463829. The next prime is 381463889. The reversal of 381463834 is 438364183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 438364183 = 67 ⋅6542749.

It can be written as a sum of positive squares in only one way, i.e., 363016809 + 18447025 = 19053^2 + 4295^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95365957 + ... + 95365960.

Almost surely, 2^381463834 is an apocalyptic number.

381463834 is a deficient number, since it is larger than the sum of its proper divisors (190731920).

381463834 is a wasteful number, since it uses less digits than its factorization.

381463834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190731919.

The product of its digits is 165888, while the sum is 40.

The square root of 381463834 is about 19531.0991498175. The cubic root of 381463834 is about 725.2445209297.

The spelling of 381463834 in words is "three hundred eighty-one million, four hundred sixty-three thousand, eight hundred thirty-four".