404873568 has 144 divisors (see below), whose sum is σ = 1263802176. Its totient is φ = 121931520.

The previous prime is 404873561. The next prime is 404873569. The reversal of 404873568 is 865378404.

404873568 is a `hidden beast` number, since 4 + 0 + 4 + 87 + 3 + 568 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404873561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 718855 + ... + 719417.

It is an arithmetic number, because the mean of its divisors is an integer number (8776404).

Almost surely, 2^404873568 is an apocalyptic number.

404873568 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 404873568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (631901088).

404873568 is an abundant number, since it is smaller than the sum of its proper divisors (858928608).

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

404873568 is a wasteful number, since it uses less digits than its factorization.

404873568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 404873568 is about 20121.4703240096. The cubic root of 404873568 is about 739.7866246258.

The spelling of 404873568 in words is "four hundred four million, eight hundred seventy-three thousand, five hundred sixty-eight".