40400404404 has 24 divisors (see below), whose sum is σ = 95200955808. Its totient is φ = 13333466400.

The previous prime is 40400404351. The next prime is 40400404423. The reversal of 40400404404 is 40440400404.

40400404404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

40400404404 is a modest number, since divided by 404404 gives 40400 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16665622 + ... + 16668045.

It is an arithmetic number, because the mean of its divisors is an integer number (3966706492).

Almost surely, 2^40400404404 is an apocalyptic number.

It is an amenable number.

40400404404 is an abundant number, since it is smaller than the sum of its proper divisors (54800551404).

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

40400404404 is a wasteful number, since it uses less digits than its factorization.

40400404404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33333775 (or 33333773 counting only the distinct ones).

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

Adding to 40400404404 its reverse (40440400404), we get a palindrome (80840804808).

The spelling of 40400404404 in words is "forty billion, four hundred million, four hundred four thousand, four hundred four".