381004375 has 10 divisors (see below), whose sum is σ = 476103848. Its totient is φ = 304803000.

The previous prime is 381004373. The next prime is 381004387. The reversal of 381004375 is 573400183.

It is not a de Polignac number, because 381004375 - 2¹ = 381004373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381004373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 304179 + ... + 305428.

Almost surely, 2^381004375 is an apocalyptic number.

381004375 is a deficient number, since it is larger than the sum of its proper divisors (95099473).

381004375 is an frugal number, since it uses more digits than its factorization.

381004375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609627 (or 609612 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 381004375 is about 19519.3333646413. Note that the first 4 decimals coincide. The cubic root of 381004375 is about 724.9532272640.

The spelling of 381004375 in words is "three hundred eighty-one million, four thousand, three hundred seventy-five".