404412 has 24 divisors (see below), whose sum is σ = 959616.
Its totient is φ = 132528.
The previous prime is 404399. The next prime is 404419. The reversal of 404412 is 214404.
Adding to 404412 its reverse (214404), we get a palindrome (618816).
It is a junction number, because it is equal to n+sod(n) for n = 404391 and 404400.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (404419) by changing a digit.
404412 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 (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553 + ... + 1055.
It is an arithmetic number, because the mean of its divisors is an integer number (39984).
2404412 is an apocalyptic number.
It is an amenable number.
404412 is an abundant number, since it is smaller than the sum of its proper divisors (555204).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
404412 is a wasteful number, since it uses less digits than its factorization.
404412 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 577 (or 575 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 15.
The square root of 404412 is about 635.9339588353.
The cubic root of 404412 is about 73.9505391420.
The spelling of 404412 in words is "four hundred four thousand, four hundred twelve", and thus it is an iban number.