404880448 has 28 divisors (see below), whose sum is σ = 918212032. Its totient is φ = 173520000.

The previous prime is 404880439. The next prime is 404880457. The reversal of 404880448 is 844088404.

It is an interprime number because it is at equal distance from previous prime (404880439) and next prime (404880457).

It is a tau number, because it is divible by the number of its divisors (28).

It is a self number, because there is not a number n which added to its sum of digits gives 404880448.

It is an unprimeable number.

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, 451428 + ... + 452323.

Almost surely, 2^404880448 is an apocalyptic number.

It is an amenable number.

404880448 is an abundant number, since it is smaller than the sum of its proper divisors (513331584).

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

404880448 is an equidigital number, since it uses as much as digits as its factorization.

404880448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903770 (or 903760 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 40.

The square root of 404880448 is about 20121.6412849449. The cubic root of 404880448 is about 739.7908149900.

The spelling of 404880448 in words is "four hundred four million, eight hundred eighty thousand, four hundred forty-eight".