381924386 has 8 divisors (see below), whose sum is σ = 573481920. Its totient is φ = 190763748.

The previous prime is 381924383. The next prime is 381924391. The reversal of 381924386 is 683429183.

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 (381924383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96806 + ... + 100673.

It is an arithmetic number, because the mean of its divisors is an integer number (71685240).

Almost surely, 2^381924386 is an apocalyptic number.

381924386 is a deficient number, since it is larger than the sum of its proper divisors (191557534).

381924386 is a wasteful number, since it uses less digits than its factorization.

381924386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198448.

The product of its digits is 248832, while the sum is 44.

The square root of 381924386 is about 19542.8858155596. The cubic root of 381924386 is about 725.5362729072.

The spelling of 381924386 in words is "three hundred eighty-one million, nine hundred twenty-four thousand, three hundred eighty-six".