40402122404 has 12 divisors (see below), whose sum is σ = 80804244864. Its totient is φ = 17315195304.

The previous prime is 40402122377. The next prime is 40402122407. The reversal of 40402122404 is 40422120404.

40402122404 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 40402122404.

It is not an unprimeable number, because it can be changed into a prime (40402122407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721466444 + ... + 721466499.

It is an arithmetic number, because the mean of its divisors is an integer number (6733687072).

Almost surely, 2^40402122404 is an apocalyptic number.

It is an amenable number.

40402122404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40402122404 is a wasteful number, since it uses less digits than its factorization.

40402122404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442932954 (or 1442932952 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 40402122404 its reverse (40422120404), we get a palindrome (80824242808).

The spelling of 40402122404 in words is "forty billion, four hundred two million, one hundred twenty-two thousand, four hundred four".