40342041444420 has 144 divisors (see below), whose sum is σ = 128817114229440. Its totient is φ = 10191223934208.

The previous prime is 40342041444377. The next prime is 40342041444421. The reversal of 40342041444420 is 2444414024304.

It is a happy number.

40342041444420 is a `hidden beast` number, since 4 + 0 + 3 + 4 + 204 + 1 + 4 + 4 + 442 + 0 = 666.

40342041444420 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (40342041444421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80966374 + ... + 81463106.

It is an arithmetic number, because the mean of its divisors is an integer number (894563293260).

Almost surely, 2^{40342041444420} is an apocalyptic number.

It is an amenable number.

40342041444420 is an abundant number, since it is smaller than the sum of its proper divisors (88475072785020).

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

40342041444420 is a wasteful number, since it uses less digits than its factorization.

40342041444420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520514 (or 520509 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 36.

Adding to 40342041444420 its reverse (2444414024304), we get a palindrome (42786455468724).

The spelling of 40342041444420 in words is "forty trillion, three hundred forty-two billion, forty-one million, four hundred forty-four thousand, four hundred twenty".