524004240 has 80 divisors (see below), whose sum is σ = 1632806208. Its totient is φ = 139012608.

The previous prime is 524004233. The next prime is 524004241. The reversal of 524004240 is 42400425.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (524004241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41739 + ... + 52821.

Almost surely, 2^524004240 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 524004240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (816403104).

524004240 is an abundant number, since it is smaller than the sum of its proper divisors (1108801968).

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

524004240 is a wasteful number, since it uses less digits than its factorization.

524004240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11296 (or 11290 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 524004240 is about 22891.1388969619. The cubic root of 524004240 is about 806.2039723739.

Adding to 524004240 its reverse (42400425), we get a palindrome (566404665).

The spelling of 524004240 in words is "five hundred twenty-four million, four thousand, two hundred forty".