40240412420 has 96 divisors (see below), whose sum is σ = 94487178240. Its totient is φ = 14295098880.

The previous prime is 40240412413. The next prime is 40240412431. The reversal of 40240412420 is 2421404204.

40240412420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1379951 + ... + 1408809.

It is an arithmetic number, because the mean of its divisors is an integer number (984241440).

Almost surely, 2^40240412420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40240412420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47243589120).

40240412420 is an abundant number, since it is smaller than the sum of its proper divisors (54246765820).

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

40240412420 is a wasteful number, since it uses less digits than its factorization.

40240412420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29085 (or 29083 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 40240412420 its reverse (2421404204), we get a palindrome (42661816624).

The spelling of 40240412420 in words is "forty billion, two hundred forty million, four hundred twelve thousand, four hundred twenty".