240542212420 has 96 divisors (see below), whose sum is σ = 523008275328. Its totient is φ = 92870572032.

The previous prime is 240542212387. The next prime is 240542212433. The reversal of 240542212420 is 24212245042.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39841642 + ... + 39847678.

It is an arithmetic number, because the mean of its divisors is an integer number (5448002868).

Almost surely, 2^240542212420 is an apocalyptic number.

240542212420 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 240542212420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261504137664).

240542212420 is an abundant number, since it is smaller than the sum of its proper divisors (282466062908).

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

240542212420 is a wasteful number, since it uses less digits than its factorization.

240542212420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6629 (or 6627 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 240542212420 its reverse (24212245042), we get a palindrome (264754457462).

The spelling of 240542212420 in words is "two hundred forty billion, five hundred forty-two million, two hundred twelve thousand, four hundred twenty".