404112 has 20 divisors (see below), whose sum is σ = 1044080. Its totient is φ = 134688.

The previous prime is 404099. The next prime is 404113. The reversal of 404112 is 211404.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 404112.

It is not an unprimeable number, because it can be changed into a prime (404113) by changing a digit.

404112 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4162 + ... + 4257.

It is an arithmetic number, because the mean of its divisors is an integer number (52204).

2⁴⁰⁴¹¹² is an apocalyptic number.

It is an amenable number.

404112 is an abundant number, since it is smaller than the sum of its proper divisors (639968).

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

404112 is a wasteful number, since it uses less digits than its factorization.

404112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8430 (or 8424 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 404112 is about 635.6980415260. The cubic root of 404112 is about 73.9322486777.

Adding to 404112 its reverse (211404), we get a palindrome (615516).

The spelling of 404112 in words is "four hundred four thousand, one hundred twelve", and thus it is an iban number.