40404040404042 has 64 divisors (see below), whose sum is σ = 97219470643200. Its totient is φ = 10935673531200.

The previous prime is 40404040404031. The next prime is 40404040404043. The reversal of 40404040404042 is 24040404040404.

It is not an unprimeable number, because it can be changed into a prime (40404040404043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9805792 + ... + 13302692.

It is an arithmetic number, because the mean of its divisors is an integer number (1519054228800).

Almost surely, 2^{40404040404042} is an apocalyptic number.

40404040404042 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40404040404042 is an abundant number, since it is smaller than the sum of its proper divisors (56815430239158).

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

40404040404042 is a wasteful number, since it uses less digits than its factorization.

40404040404042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3511411.

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 40404040404042 its reverse (24040404040404), we get a palindrome (64444444444446).

It can be divided in two parts, 4040404040404 and 2, that multiplied together give a palindrome (8080808080808).

The spelling of 40404040404042 in words is "forty trillion, four hundred four billion, forty million, four hundred four thousand, forty-two".