421104320 has 112 divisors (see below), whose sum is σ = 1234244928. Its totient is φ = 133263360.

The previous prime is 421104319. The next prime is 421104329. The reversal of 421104320 is 23401124.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421104329) 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 15 ways as a sum of consecutive naturals, for example, 21890 + ... + 36350.

It is an arithmetic number, because the mean of its divisors is an integer number (11020044).

Almost surely, 2^421104320 is an apocalyptic number.

421104320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421104320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (617122464).

421104320 is an abundant number, since it is smaller than the sum of its proper divisors (813140608).

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

421104320 is a wasteful number, since it uses less digits than its factorization.

421104320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14498 (or 14488 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 421104320 is about 20520.8264940767. The cubic root of 421104320 is about 749.5430223592.

Adding to 421104320 its reverse (23401124), we get a palindrome (444505444).

The spelling of 421104320 in words is "four hundred twenty-one million, one hundred four thousand, three hundred twenty".