532440240 has 80 divisors (see below), whose sum is σ = 1653617376. Its totient is φ = 141721600.

The previous prime is 532440229. The next prime is 532440241. The reversal of 532440240 is 42044235.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 532440240.

It is not an unprimeable number, because it can be changed into a prime (532440241) 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, 152110 + ... + 155570.

Almost surely, 2^532440240 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 532440240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (826808688).

532440240 is an abundant number, since it is smaller than the sum of its proper divisors (1121177136).

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

532440240 is a wasteful number, since it uses less digits than its factorization.

532440240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4118 (or 4112 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 532440240 is about 23074.6666281444. Note that the first 4 decimals coincide. The cubic root of 532440240 is about 810.5073486668.

Adding to 532440240 its reverse (42044235), we get a palindrome (574484475).

The spelling of 532440240 in words is "five hundred thirty-two million, four hundred forty thousand, two hundred forty".