512442 has 48 divisors (see below), whose sum is σ = 1310400. Its totient is φ = 144648.

The previous prime is 512429. The next prime is 512443. The reversal of 512442 is 244215.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (512443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6133 + ... + 6215.

It is an arithmetic number, because the mean of its divisors is an integer number (27300).

2⁵¹²⁴⁴² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 512442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (655200).

512442 is an abundant number, since it is smaller than the sum of its proper divisors (797958).

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

512442 is a wasteful number, since it uses less digits than its factorization.

512442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 95 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 512442 is about 715.8505430605. The cubic root of 512442 is about 80.0230142120.

Adding to 512442 its reverse (244215), we get a palindrome (756657).

The spelling of 512442 in words is "five hundred twelve thousand, four hundred forty-two".