512838 has 16 divisors (see below), whose sum is σ = 1139760. Its totient is φ = 170928.

The previous prime is 512821. The next prime is 512843. The reversal of 512838 is 838215.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4695 + ... + 4802.

It is an arithmetic number, because the mean of its divisors is an integer number (71235).

2⁵¹²⁸³⁸ is an apocalyptic number.

512838 is an abundant number, since it is smaller than the sum of its proper divisors (626922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

512838 is a wasteful number, since it uses less digits than its factorization.

512838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9508 (or 9502 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 512838 is about 716.1270836939. The cubic root of 512838 is about 80.0436220430.

The spelling of 512838 in words is "five hundred twelve thousand, eight hundred thirty-eight".