381144170 has 32 divisors (see below), whose sum is σ = 749528640. Its totient is φ = 138394240.

The previous prime is 381144157. The next prime is 381144193. The reversal of 381144170 is 71441183.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 86849 + ... + 91131.

It is an arithmetic number, because the mean of its divisors is an integer number (23422770).

Almost surely, 2^381144170 is an apocalyptic number.

381144170 is a deficient number, since it is larger than the sum of its proper divisors (368384470).

381144170 is a wasteful number, since it uses less digits than its factorization.

381144170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 381144170 is about 19522.9139730728. The cubic root of 381144170 is about 725.0418810527.

The spelling of 381144170 in words is "three hundred eighty-one million, one hundred forty-four thousand, one hundred seventy".