404000040403 has 4 divisors (see below), whose sum is σ = 427764748680. Its totient is φ = 380235332128.

The previous prime is 404000040373. The next prime is 404000040421. The reversal of 404000040403 is 304040000404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 404000040403 - 2⁵ = 404000040371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404000070403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11882354113 + ... + 11882354146.

It is an arithmetic number, because the mean of its divisors is an integer number (106941187170).

Almost surely, 2^404000040403 is an apocalyptic number.

404000040403 is a deficient number, since it is larger than the sum of its proper divisors (23764708277).

404000040403 is a wasteful number, since it uses less digits than its factorization.

404000040403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23764708276.

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 404000040403 its reverse (304040000404), we get a palindrome (708040040807).

The spelling of 404000040403 in words is "four hundred four billion, forty thousand, four hundred three".