400004342404 has 72 divisors (see below), whose sum is σ = 756535852800. Its totient is φ = 184849896000.

The previous prime is 400004342341. The next prime is 400004342407. The reversal of 400004342404 is 404243400004.

It is not an unprimeable number, because it can be changed into a prime (400004342407) 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 23 ways as a sum of consecutive naturals, for example, 45978447 + ... + 45987145.

It is an arithmetic number, because the mean of its divisors is an integer number (10507442400).

Almost surely, 2^400004342404 is an apocalyptic number.

It is an amenable number.

400004342404 is a deficient number, since it is larger than the sum of its proper divisors (356531510396).

400004342404 is a wasteful number, since it uses less digits than its factorization.

400004342404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9481 (or 9456 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

Adding to 400004342404 its reverse (404243400004), we get a palindrome (804247742408).

The spelling of 400004342404 in words is "four hundred billion, four million, three hundred forty-two thousand, four hundred four".