420104 has 16 divisors (see below), whose sum is σ = 834300.
Its totient is φ = 197632.
The previous prime is 420103. The next prime is 420149. The reversal of 420104 is 401024.
It can be written as a sum of positive squares in 2 ways, for example, as 357604 + 62500 = 598^2 + 250^2
It is not an unprimeable number, because it can be changed into a prime (420103) by changing a digit.
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, 1409 + ... + 1680.
2420104 is an apocalyptic number.
It is an amenable number.
420104 is a deficient number, since it is larger than the sum of its proper divisors (414196).
420104 is a wasteful number, since it uses less digits than its factorization.
420104 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3112 (or 3108 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 11.
The square root of 420104 is about 648.1543026163.
The cubic root of 420104 is about 74.8949046535.
Adding to 420104 its reverse (401024), we get a palindrome (821128).
The spelling of 420104 in words is "four hundred twenty thousand, one hundred four", and thus it is an iban number.