532431240 has 128 divisors (see below), whose sum is σ = 1750533120. Its totient is φ = 128480000.

The previous prime is 532431233. The next prime is 532431247. The reversal of 532431240 is 42134235.

It is an interprime number because it is at equal distance from previous prime (532431233) and next prime (532431247).

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 532431240.

It is not an unprimeable number, because it can be changed into a prime (532431247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 330517 + ... + 332123.

It is an arithmetic number, because the mean of its divisors is an integer number (13676040).

Almost surely, 2^532431240 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 532431240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (875266560).

532431240 is an abundant number, since it is smaller than the sum of its proper divisors (1218101880).

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

532431240 is a wasteful number, since it uses less digits than its factorization.

532431240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883 (or 1879 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 532431240 is about 23074.4716082514. The cubic root of 532431240 is about 810.5027818900.

Adding to 532431240 its reverse (42134235), we get a palindrome (574565475).

The spelling of 532431240 in words is "five hundred thirty-two million, four hundred thirty-one thousand, two hundred forty".