512332381 has 16 divisors (see below), whose sum is σ = 578912256. Its totient is φ = 449190000.

The previous prime is 512332363. The next prime is 512332393. The reversal of 512332381 is 183233215.

It is not a de Polignac number, because 512332381 - 2¹¹ = 512330333 is a prime.

It is a super-2 number, since 2×512332381² = 524968937242258322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512332361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103636 + ... + 108466.

It is an arithmetic number, because the mean of its divisors is an integer number (36182016).

Almost surely, 2^512332381 is an apocalyptic number.

It is an amenable number.

512332381 is a deficient number, since it is larger than the sum of its proper divisors (66579875).

512332381 is a wasteful number, since it uses less digits than its factorization.

512332381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5184.

The product of its digits is 4320, while the sum is 28.

The square root of 512332381 is about 22634.7604581979. The cubic root of 512332381 is about 800.1730776566.

Adding to 512332381 its reverse (183233215), we get a palindrome (695565596).

The spelling of 512332381 in words is "five hundred twelve million, three hundred thirty-two thousand, three hundred eighty-one".