40404040404 has 192 divisors, whose sum is σ = 120360156672. Its totient is φ = 10264320000.

The previous prime is 40404040399. The next prime is 40404040451.

40404040404 is nontrivially palindromic in base 10.

40404040404 is an undulating number in base 10.

40404040404 is a modest number, since divided by 4040404 gives 404 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4075854 + ... + 4085754.

It is an arithmetic number, because the mean of its divisors is an integer number (626875816).

Almost surely, 2^40404040404 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 40404040404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60180078336).

40404040404 is an abundant number, since it is smaller than the sum of its proper divisors (79956116268).

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

40404040404 is a wasteful number, since it uses less digits than its factorization.

40404040404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10066 (or 10064 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

It can be divided in two parts, 404040 and 40404, that added together give a palindrome (444444).

The spelling of 40404040404 in words is "forty billion, four hundred four million, forty thousand, four hundred four".