404804440 has 16 divisors (see below), whose sum is σ = 910810080. Its totient is φ = 161921760.

The previous prime is 404804437. The next prime is 404804447. The reversal of 404804440 is 44408404.

It is a junction number, because it is equal to n+sod(n) for n = 404804399 and 404804408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404804447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5060016 + ... + 5060095.

It is an arithmetic number, because the mean of its divisors is an integer number (56925630).

Almost surely, 2^404804440 is an apocalyptic number.

404804440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404804440 is an abundant number, since it is smaller than the sum of its proper divisors (506005640).

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

404804440 is a wasteful number, since it uses less digits than its factorization.

404804440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10120122 (or 10120118 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

The square root of 404804440 is about 20119.7524835670. The cubic root of 404804440 is about 739.7445185754.

The spelling of 404804440 in words is "four hundred four million, eight hundred four thousand, four hundred forty".