404860 has 24 divisors (see below), whose sum is σ = 878976. Its totient is φ = 156480.

The previous prime is 404851. The next prime is 404941. The reversal of 404860 is 68404.

404860 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 294 + ... + 946.

It is an arithmetic number, because the mean of its divisors is an integer number (36624).

2⁴⁰⁴⁸⁶⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (439488).

404860 is an abundant number, since it is smaller than the sum of its proper divisors (474116).

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

404860 is a wasteful number, since it uses less digits than its factorization.

404860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 691 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 404860 is about 636.2860991724. The cubic root of 404860 is about 73.9778360699.

It can be divided in two parts, 40 and 4860, that added together give a square (4900 = 70²).

The spelling of 404860 in words is "four hundred four thousand, eight hundred sixty".