381345938 has 8 divisors (see below), whose sum is σ = 605667132. Its totient is φ = 179456896.

The previous prime is 381345917. The next prime is 381345947. The reversal of 381345938 is 839543183.

It can be written as a sum of positive squares in 2 ways, for example, as 282004849 + 99341089 = 16793^2 + 9967^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5607995 + ... + 5608062.

Almost surely, 2^381345938 is an apocalyptic number.

381345938 is a deficient number, since it is larger than the sum of its proper divisors (224321194).

381345938 is a wasteful number, since it uses less digits than its factorization.

381345938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11216076.

The product of its digits is 311040, while the sum is 44.

The square root of 381345938 is about 19528.0807556708. The cubic root of 381345938 is about 725.1697980416.

It can be divided in two parts, 381345 and 938, that added together give a palindrome (382283).

The spelling of 381345938 in words is "three hundred eighty-one million, three hundred forty-five thousand, nine hundred thirty-eight".