512047238 has 4 divisors (see below), whose sum is σ = 768070860. Its totient is φ = 256023618.

The previous prime is 512047231. The next prime is 512047267. The reversal of 512047238 is 832740215.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512047231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128011808 + ... + 128011811.

It is an arithmetic number, because the mean of its divisors is an integer number (192017715).

Almost surely, 2^512047238 is an apocalyptic number.

512047238 is a deficient number, since it is larger than the sum of its proper divisors (256023622).

512047238 is a wasteful number, since it uses less digits than its factorization.

512047238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256023621.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 512047238 is about 22628.4607960860. The cubic root of 512047238 is about 800.0246023684.

The spelling of 512047238 in words is "five hundred twelve million, forty-seven thousand, two hundred thirty-eight".