404448080 has 20 divisors (see below), whose sum is σ = 940341972. Its totient is φ = 161779200.

The previous prime is 404448061. The next prime is 404448089. The reversal of 404448080 is 80844404.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 272382016 + 132066064 = 16504^2 + 11492^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404448089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2527721 + ... + 2527880.

Almost surely, 2^404448080 is an apocalyptic number.

404448080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404448080 is an abundant number, since it is smaller than the sum of its proper divisors (535893892).

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

404448080 is a wasteful number, since it uses less digits than its factorization.

404448080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055614 (or 5055608 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 404448080 is about 20110.8945599145. The cubic root of 404448080 is about 739.5273826580.

The spelling of 404448080 in words is "four hundred four million, four hundred forty-eight thousand, eighty".