421104 has 40 divisors (see below), whose sum is σ = 1126912. Its totient is φ = 135360.

The previous prime is 421103. The next prime is 421121. The reversal of 421104 is 401124.

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

It is a self number, because there is not a number n which added to its sum of digits gives 421104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1347 + ... + 1629.

2⁴²¹¹⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (563456).

421104 is an abundant number, since it is smaller than the sum of its proper divisors (705808).

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

421104 is a wasteful number, since it uses less digits than its factorization.

421104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325 (or 319 counting only the distinct ones).

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

The square root of 421104 is about 648.9252653426. The cubic root of 421104 is about 74.9542832498.

Adding to 421104 its reverse (401124), we get a palindrome (822228).

It can be divided in two parts, 421 and 104, that added together give a palindrome (525).

The spelling of 421104 in words is "four hundred twenty-one thousand, one hundred four", and thus it is an iban number.