381084845 has 8 divisors (see below), whose sum is σ = 457870560. Its totient is φ = 304488720.

The previous prime is 381084841. The next prime is 381084857. The reversal of 381084845 is 548480183.

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

It is not a de Polignac number, because 381084845 - 2² = 381084841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381084841) 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 7 ways as a sum of consecutive naturals, for example, 42935 + ... + 51044.

It is an arithmetic number, because the mean of its divisors is an integer number (57233820).

Almost surely, 2^381084845 is an apocalyptic number.

It is an amenable number.

381084845 is a deficient number, since it is larger than the sum of its proper divisors (76785715).

381084845 is an equidigital number, since it uses as much as digits as its factorization.

381084845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94795.

The product of its (nonzero) digits is 122880, while the sum is 41.

The square root of 381084845 is about 19521.3945454724. The cubic root of 381084845 is about 725.0042615683.

The spelling of 381084845 in words is "three hundred eighty-one million, eighty-four thousand, eight hundred forty-five".