441638980 has 24 divisors (see below), whose sum is σ = 933672600. Its totient is φ = 175468800.

The previous prime is 441638947. The next prime is 441638987. The reversal of 441638980 is 89836144.

It can be written as a sum of positive squares in 4 ways, for example, as 13645636 + 427993344 = 3694^2 + 20688^2 .

It is not an unprimeable number, because it can be changed into a prime (441638987) 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 7 ways as a sum of consecutive naturals, for example, 71121 + ... + 77080.

It is an arithmetic number, because the mean of its divisors is an integer number (38903025).

Almost surely, 2^441638980 is an apocalyptic number.

It is an amenable number.

441638980 is an abundant number, since it is smaller than the sum of its proper divisors (492033620).

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

441638980 is a wasteful number, since it uses less digits than its factorization.

441638980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148359 (or 148357 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 441638980 is about 21015.2083025603. The cubic root of 441638980 is about 761.5337103087.

The spelling of 441638980 in words is "four hundred forty-one million, six hundred thirty-eight thousand, nine hundred eighty".