240442330420 has 24 divisors (see below), whose sum is σ = 505046581704. Its totient is φ = 96154515456.

The previous prime is 240442330411. The next prime is 240442330423. The reversal of 240442330420 is 24033244042.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 100784661156 + 139657669264 = 317466^2 + 373708^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240442330423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1312957 + ... + 1484836.

It is an arithmetic number, because the mean of its divisors is an integer number (21043607571).

Almost surely, 2^240442330420 is an apocalyptic number.

240442330420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240442330420 is an abundant number, since it is smaller than the sum of its proper divisors (264604251284).

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

240442330420 is a wasteful number, since it uses less digits than its factorization.

240442330420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802099 (or 2802097 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 240442330420 its reverse (24033244042), we get a palindrome (264475574462).

The spelling of 240442330420 in words is "two hundred forty billion, four hundred forty-two million, three hundred thirty thousand, four hundred twenty".