381912494 has 8 divisors (see below), whose sum is σ = 580716480. Its totient is φ = 188340336.

The previous prime is 381912491. The next prime is 381912523. The reversal of 381912494 is 494219183.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381912491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1307774 + ... + 1308065.

It is an arithmetic number, because the mean of its divisors is an integer number (72589560).

Almost surely, 2^381912494 is an apocalyptic number.

381912494 is a deficient number, since it is larger than the sum of its proper divisors (198803986).

381912494 is a wasteful number, since it uses less digits than its factorization.

381912494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615914.

The product of its digits is 62208, while the sum is 41.

The square root of 381912494 is about 19542.5815592516. The cubic root of 381912494 is about 725.5287424751.

The spelling of 381912494 in words is "three hundred eighty-one million, nine hundred twelve thousand, four hundred ninety-four".