441843820 has 48 divisors (see below), whose sum is σ = 1016096256. Its totient is φ = 160056000.

The previous prime is 441843799. The next prime is 441843833. The reversal of 441843820 is 28348144.

It is a happy number.

It is a super-2 number, since 2×441843820² = 390451922544384800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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, 55915 + ... + 63325.

It is an arithmetic number, because the mean of its divisors is an integer number (21168672).

Almost surely, 2^441843820 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 441843820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (508048128).

441843820 is an abundant number, since it is smaller than the sum of its proper divisors (574252436).

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

441843820 is a wasteful number, since it uses less digits than its factorization.

441843820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7702 (or 7700 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 441843820 is about 21020.0813509368. The cubic root of 441843820 is about 761.6514297289.

The spelling of 441843820 in words is "four hundred forty-one million, eight hundred forty-three thousand, eight hundred twenty".