524340 has 48 divisors (see below), whose sum is σ = 1632960. Its totient is φ = 139680.

The previous prime is 524309. The next prime is 524341. The reversal of 524340 is 43425.

It is a happy number.

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

It is an Ulam number.

It is a d-powerful number, because it can be written as 5 + 2¹⁹ + 3³ + 4 + 4² + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (524341) 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, 55 + ... + 1025.

It is an arithmetic number, because the mean of its divisors is an integer number (34020).

2⁵²⁴³⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 524340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (816480).

524340 is an abundant number, since it is smaller than the sum of its proper divisors (1108620).

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

524340 is a wasteful number, since it uses less digits than its factorization.

524340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989 (or 981 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 524340 is about 724.1132508109. The cubic root of 524340 is about 80.6376129537.

Adding to 524340 its reverse (43425), we get a palindrome (567765).

The spelling of 524340 in words is "five hundred twenty-four thousand, three hundred forty".