407404 has 12 divisors (see below), whose sum is σ = 718200.
Its totient is φ = 202208.
The previous prime is 407401. The next prime is 407437. The reversal of 407404 is 404704.
It is a happy number.
It is an Ulam number.
It is a plaindrome in base 13.
It is not an unprimeable number, because it can be changed into a prime (407401) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 432 + ... + 1000.
It is an arithmetic number, because the mean of its divisors is an integer number (59850).
2407404 is an apocalyptic number.
It is an amenable number.
407404 is a deficient number, since it is larger than the sum of its proper divisors (310796).
407404 is a wasteful number, since it uses less digits than its factorization.
407404 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 752 (or 750 counting only the distinct ones).
The product of its (nonzero) digits is 448, while the sum is 19.
The square root of 407404 is about 638.2820693079.
The cubic root of 407404 is about 74.1324630122.
The spelling of 407404 in words is "four hundred seven thousand, four hundred four", and thus it is an iban number.