404660424 has 64 divisors (see below), whose sum is σ = 1179792000. Its totient is φ = 115614912.

The previous prime is 404660419. The next prime is 404660471. The reversal of 404660424 is 424066404.

It is a junction number, because it is equal to n+sod(n) for n = 404660391 and 404660400.

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 15 ways as a sum of consecutive naturals, for example, 16347 + ... + 32810.

It is an arithmetic number, because the mean of its divisors is an integer number (18434250).

Almost surely, 2^404660424 is an apocalyptic number.

It is an amenable number.

404660424 is an abundant number, since it is smaller than the sum of its proper divisors (775131576).

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

404660424 is a wasteful number, since it uses less digits than its factorization.

404660424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49187 (or 49169 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 404660424 is about 20116.1731947207. The cubic root of 404660424 is about 739.6567826446.

The spelling of 404660424 in words is "four hundred four million, six hundred sixty thousand, four hundred twenty-four".