240531452720 has 80 divisors (see below), whose sum is σ = 621681376512. Its totient is φ = 85946711040.

The previous prime is 240531452719. The next prime is 240531452723. The reversal of 240531452720 is 27254135042.

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 (240531452723) 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, 3698087 + ... + 3762566.

Almost surely, 2^240531452720 is an apocalyptic number.

240531452720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240531452720 is an abundant number, since it is smaller than the sum of its proper divisors (381149923792).

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

240531452720 is a wasteful number, since it uses less digits than its factorization.

240531452720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7460710 (or 7460704 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 35.

Adding to 240531452720 its reverse (27254135042), we get a palindrome (267785587762).

The spelling of 240531452720 in words is "two hundred forty billion, five hundred thirty-one million, four hundred fifty-two thousand, seven hundred twenty".