40404110442020 has 72 divisors (see below), whose sum is σ = 91880397320040. Its totient is φ = 14917972392960.

The previous prime is 40404110442001. The next prime is 40404110442061. The reversal of 40404110442020 is 2024401140404.

40404110442020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 20271533721664 + 20132576720356 = 4502392^2 + 4486934^2 .

It is a super-2 number, since 2×40404110442020² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118606496 + ... + 118946664.

It is an arithmetic number, because the mean of its divisors is an integer number (1276116629445).

Almost surely, 2^{40404110442020} is an apocalyptic number.

It is an amenable number.

40404110442020 is an abundant number, since it is smaller than the sum of its proper divisors (51476286878020).

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

40404110442020 is a wasteful number, since it uses less digits than its factorization.

40404110442020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375345 (or 375330 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 40404110442020 its reverse (2024401140404), we get a palindrome (42428511582424).

The spelling of 40404110442020 in words is "forty trillion, four hundred four billion, one hundred ten million, four hundred forty-two thousand, twenty".