441643916 has 12 divisors (see below), whose sum is σ = 883287888. Its totient is φ = 189275952.

The previous prime is 441643879. The next prime is 441643981. The reversal of 441643916 is 619346144.

441643916 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 441643916.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7886471 + ... + 7886526.

It is an arithmetic number, because the mean of its divisors is an integer number (73607324).

Almost surely, 2^441643916 is an apocalyptic number.

It is an amenable number.

441643916 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

441643916 is a wasteful number, since it uses less digits than its factorization.

441643916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15773008 (or 15773006 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 441643916 is about 21015.3257409920. The cubic root of 441643916 is about 761.5365474045.

The spelling of 441643916 in words is "four hundred forty-one million, six hundred forty-three thousand, nine hundred sixteen".