381067775 has 24 divisors (see below), whose sum is σ = 526466304. Its totient is φ = 271234400.

The previous prime is 381067759. The next prime is 381067777. The reversal of 381067775 is 577760183.

It is not a de Polignac number, because 381067775 - 2⁴ = 381067759 is a prime.

It is a super-3 number, since 3×381067775³ (a number of 27 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381067777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1817 + ... + 27666.

It is an arithmetic number, because the mean of its divisors is an integer number (21936096).

Almost surely, 2^381067775 is an apocalyptic number.

381067775 is a deficient number, since it is larger than the sum of its proper divisors (145398529).

381067775 is a wasteful number, since it uses less digits than its factorization.

381067775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29551 (or 29546 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 44.

The square root of 381067775 is about 19520.9573279591. The cubic root of 381067775 is about 724.9934363258.

The spelling of 381067775 in words is "three hundred eighty-one million, sixty-seven thousand, seven hundred seventy-five".