40424002004020 has 12 divisors (see below), whose sum is σ = 84890404208484. Its totient is φ = 16169600801600.

The previous prime is 40424002003981. The next prime is 40424002004143. The reversal of 40424002004020 is 2040020042404.

It can be written as a sum of positive squares in 2 ways, for example, as 16136176524196 + 24287825479824 = 4016986^2 + 4928268^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40424002003982 and 40424002004000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010600050081 + ... + 1010600050120.

It is an arithmetic number, because the mean of its divisors is an integer number (7074200350707).

Almost surely, 2^{40424002004020} is an apocalyptic number.

It is an amenable number.

40424002004020 is an abundant number, since it is smaller than the sum of its proper divisors (44466402204464).

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

40424002004020 is a wasteful number, since it uses less digits than its factorization.

40424002004020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021200100210 (or 2021200100208 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 40424002004020 its reverse (2040020042404), we get a palindrome (42464022046424).

The spelling of 40424002004020 in words is "forty trillion, four hundred twenty-four billion, two million, four thousand, twenty".