381823071 has 16 divisors (see below), whose sum is σ = 582220800. Its totient is φ = 218036448.

The previous prime is 381823067. The next prime is 381823073. The reversal of 381823071 is 170328183.

It is not a de Polignac number, because 381823071 - 2² = 381823067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381823073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30570 + ... + 41208.

It is an arithmetic number, because the mean of its divisors is an integer number (36388800).

Almost surely, 2^381823071 is an apocalyptic number.

381823071 is a deficient number, since it is larger than the sum of its proper divisors (200397729).

381823071 is a wasteful number, since it uses less digits than its factorization.

381823071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12358.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 381823071 is about 19540.2935238957. The cubic root of 381823071 is about 725.4721116831.

The spelling of 381823071 in words is "three hundred eighty-one million, eight hundred twenty-three thousand, seventy-one".