380927205 has 40 divisors (see below), whose sum is σ = 689191800. Its totient is φ = 201273984.

The previous prime is 380927191. The next prime is 380927221. The reversal of 380927205 is 502729083.

It is a happy number.

380927205 is a `hidden beast` number, since 380 + 9 + 272 + 0 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 109369764 + 271557441 = 10458^2 + 16479^2 .

It is not a de Polignac number, because 380927205 - 2⁷ = 380927077 is a prime.

It is a super-2 number, since 2×380927205² = 290211071018224050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 380927205.

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 39831 + ... + 48459.

It is an arithmetic number, because the mean of its divisors is an integer number (17229795).

Almost surely, 2^380927205 is an apocalyptic number.

It is an amenable number.

380927205 is a deficient number, since it is larger than the sum of its proper divisors (308264595).

380927205 is a wasteful number, since it uses less digits than its factorization.

380927205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8755 (or 8746 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 380927205 is about 19517.3565064534. The cubic root of 380927205 is about 724.9042790788.

The spelling of 380927205 in words is "three hundred eighty million, nine hundred twenty-seven thousand, two hundred five".