383752381 has 4 divisors (see below), whose sum is σ = 383809600. Its totient is φ = 383695164.

The previous prime is 383752363. The next prime is 383752393. The reversal of 383752381 is 183257383.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 383752381 - 2⁹ = 383751869 is a prime.

It is a super-2 number, since 2×383752381² = 294531779846338322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383752361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16971 + ... + 32488.

It is an arithmetic number, because the mean of its divisors is an integer number (95952400).

Almost surely, 2^383752381 is an apocalyptic number.

It is an amenable number.

383752381 is a deficient number, since it is larger than the sum of its proper divisors (57219).

383752381 is an equidigital number, since it uses as much as digits as its factorization.

383752381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57218.

The product of its digits is 120960, while the sum is 40.

The square root of 383752381 is about 19589.5987963000. The cubic root of 383752381 is about 726.6919696554.

The spelling of 383752381 in words is "three hundred eighty-three million, seven hundred fifty-two thousand, three hundred eighty-one".