404520048 has 120 divisors (see below), whose sum is σ = 1185526800. Its totient is φ = 132061824.

The previous prime is 404520047. The next prime is 404520059. The reversal of 404520048 is 840025404.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404520047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1503658 + ... + 1503926.

It is an arithmetic number, because the mean of its divisors is an integer number (9879390).

Almost surely, 2^404520048 is an apocalyptic number.

404520048 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404520048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592763400).

404520048 is an abundant number, since it is smaller than the sum of its proper divisors (781006752).

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

404520048 is a wasteful number, since it uses less digits than its factorization.

404520048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 404520048 is about 20112.6837592600. The cubic root of 404520048 is about 739.5712442006.

The spelling of 404520048 in words is "four hundred four million, five hundred twenty thousand, forty-eight".