441421320 has 128 divisors (see below), whose sum is σ = 1412432640. Its totient is φ = 109977600.

The previous prime is 441421283. The next prime is 441421349. The reversal of 441421320 is 23124144.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 307324 + ... + 308756.

It is an arithmetic number, because the mean of its divisors is an integer number (11034630).

Almost surely, 2^441421320 is an apocalyptic number.

441421320 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 441421320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (706216320).

441421320 is an abundant number, since it is smaller than the sum of its proper divisors (971011320).

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

441421320 is a wasteful number, since it uses less digits than its factorization.

441421320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615 (or 1611 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 441421320 is about 21010.0290337734. The cubic root of 441421320 is about 761.4085834720.

Adding to 441421320 its reverse (23124144), we get a palindrome (464545464).

The spelling of 441421320 in words is "four hundred forty-one million, four hundred twenty-one thousand, three hundred twenty".