381291106 has 8 divisors (see below), whose sum is σ = 653641920. Its totient is φ = 163410468.

The previous prime is 381291077. The next prime is 381291109. The reversal of 381291106 is 601192183.

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 (381291109) 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, 13617526 + ... + 13617553.

It is an arithmetic number, because the mean of its divisors is an integer number (81705240).

Almost surely, 2^381291106 is an apocalyptic number.

381291106 is a deficient number, since it is larger than the sum of its proper divisors (272350814).

381291106 is a wasteful number, since it uses less digits than its factorization.

381291106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27235088.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 381291106 is about 19526.6767781924. The cubic root of 381291106 is about 725.1350400854.

The spelling of 381291106 in words is "three hundred eighty-one million, two hundred ninety-one thousand, one hundred six".