381094394 has 8 divisors (see below), whose sum is σ = 591353460. Its totient is φ = 183976576.

The previous prime is 381094391. The next prime is 381094403. The reversal of 381094394 is 493490183.

It can be written as a sum of positive squares in 2 ways, for example, as 352951369 + 28143025 = 18787^2 + 5305^2 .

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

It is not an unprimeable number, because it can be changed into a prime (381094391) 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 3 ways as a sum of consecutive naturals, for example, 3285239 + ... + 3285354.

Almost surely, 2^381094394 is an apocalyptic number.

381094394 is a deficient number, since it is larger than the sum of its proper divisors (210259066).

381094394 is a wasteful number, since it uses less digits than its factorization.

381094394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6570624.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 381094394 is about 19521.6391217541. The cubic root of 381094394 is about 725.0103170946.

The spelling of 381094394 in words is "three hundred eighty-one million, ninety-four thousand, three hundred ninety-four".