500805381 has 8 divisors (see below), whose sum is σ = 696772800. Its totient is φ = 319354112.

The previous prime is 500805373. The next prime is 500805413. The reversal of 500805381 is 183508005.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 500805381 - 2³ = 500805373 is a prime.

It is a super-2 number, since 2×500805381² = 501612059277110322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500807381) 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, 3628956 + ... + 3629093.

It is an arithmetic number, because the mean of its divisors is an integer number (87096600).

Almost surely, 2^500805381 is an apocalyptic number.

It is an amenable number.

500805381 is a deficient number, since it is larger than the sum of its proper divisors (195967419).

500805381 is a wasteful number, since it uses less digits than its factorization.

500805381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7258075.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 500805381 is about 22378.6813954710. The cubic root of 500805381 is about 794.1264515932.

The spelling of 500805381 in words is "five hundred million, eight hundred five thousand, three hundred eighty-one".