40121042404 has 12 divisors (see below), whose sum is σ = 73264512384. Its totient is φ = 19188324584.

The previous prime is 40121042393. The next prime is 40121042407. The reversal of 40121042404 is 40424012104.

40121042404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40121042407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218049052 + ... + 218049235.

It is an arithmetic number, because the mean of its divisors is an integer number (6105376032).

Almost surely, 2^40121042404 is an apocalyptic number.

It is an amenable number.

40121042404 is a deficient number, since it is larger than the sum of its proper divisors (33143469980).

40121042404 is a wasteful number, since it uses less digits than its factorization.

40121042404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436098314 (or 436098312 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 40121042404 its reverse (40424012104), we get a palindrome (80545054508).

The spelling of 40121042404 in words is "forty billion, one hundred twenty-one million, forty-two thousand, four hundred four".