240532144240 has 80 divisors (see below), whose sum is σ = 567225891648. Its totient is φ = 94839994368.

The previous prime is 240532144213. The next prime is 240532144249. The reversal of 240532144240 is 42441235042.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240532144249) 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, 10950709 + ... + 10972651.

Almost surely, 2^240532144240 is an apocalyptic number.

240532144240 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 240532144240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283612945824).

240532144240 is an abundant number, since it is smaller than the sum of its proper divisors (326693747408).

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

240532144240 is a wasteful number, since it uses less digits than its factorization.

240532144240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23906 (or 23900 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 240532144240 its reverse (42441235042), we get a palindrome (282973379282).

The spelling of 240532144240 in words is "two hundred forty billion, five hundred thirty-two million, one hundred forty-four thousand, two hundred forty".