240532240 has 80 divisors (see below), whose sum is σ = 617054256. Its totient is φ = 86630400.

The previous prime is 240532163. The next prime is 240532247. The reversal of 240532240 is 42235042.

It can be written as a sum of positive squares in 8 ways, for example, as 10342656 + 230189584 = 3216^2 + 15172^2 .

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 (240532247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39820 + ... + 45460.

Almost surely, 2^240532240 is an apocalyptic number.

240532240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240532240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308527128).

240532240 is an abundant number, since it is smaller than the sum of its proper divisors (376522016).

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

240532240 is a wasteful number, since it uses less digits than its factorization.

240532240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5708 (or 5702 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 240532240 is about 15509.1018437561. The cubic root of 240532240 is about 621.9055490830.

Adding to 240532240 its reverse (42235042), we get a palindrome (282767282).

The spelling of 240532240 in words is "two hundred forty million, five hundred thirty-two thousand, two hundred forty".