512340 has 24 divisors (see below), whose sum is σ = 1434720. Its totient is φ = 136608.

The previous prime is 512333. The next prime is 512353. The reversal of 512340 is 43215.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

512340 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4210 + ... + 4329.

It is an arithmetic number, because the mean of its divisors is an integer number (59780).

2⁵¹²³⁴⁰ is an apocalyptic number.

It is an amenable number.

512340 is an abundant number, since it is smaller than the sum of its proper divisors (922380).

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

512340 is a wasteful number, since it uses less digits than its factorization.

512340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8551 (or 8549 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 512340 is about 715.7792955933. The cubic root of 512340 is about 80.0177044150.

Adding to 512340 its reverse (43215), we get a palindrome (555555).

The spelling of 512340 in words is "five hundred twelve thousand, three hundred forty".