240212440420 has 24 divisors (see below), whose sum is σ = 504989163000. Its totient is φ = 95981540352.

The previous prime is 240212440409. The next prime is 240212440421. The reversal of 240212440420 is 24044212042.

It can be written as a sum of positive squares in 4 ways, for example, as 702038016 + 239510402404 = 26496^2 + 489398^2 .

It is not an unprimeable number, because it can be changed into a prime (240212440421) 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, 6445695 + ... + 6482854.

It is an arithmetic number, because the mean of its divisors is an integer number (21041215125).

Almost surely, 2^240212440420 is an apocalyptic number.

240212440420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240212440420 is an abundant number, since it is smaller than the sum of its proper divisors (264776722580).

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

240212440420 is a wasteful number, since it uses less digits than its factorization.

240212440420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12929487 (or 12929485 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 240212440420 its reverse (24044212042), we get a palindrome (264256652462).

The spelling of 240212440420 in words is "two hundred forty billion, two hundred twelve million, four hundred forty thousand, four hundred twenty".