404036476440 has 32 divisors (see below), whose sum is σ = 1212109429680. Its totient is φ = 107743060352.

The previous prime is 404036476427. The next prime is 404036476447. The reversal of 404036476440 is 44674630404.

It is a junction number, because it is equal to n+sod(n) for n = 404036476392 and 404036476401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404036476447) 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 7 ways as a sum of consecutive naturals, for example, 1683485199 + ... + 1683485438.

Almost surely, 2^404036476440 is an apocalyptic number.

404036476440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404036476440 is an abundant number, since it is smaller than the sum of its proper divisors (808072953240).

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

404036476440 is a wasteful number, since it uses less digits than its factorization.

404036476440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3366970651 (or 3366970647 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 42.

The spelling of 404036476440 in words is "four hundred four billion, thirty-six million, four hundred seventy-six thousand, four hundred forty".