441661959 has 6 divisors (see below), whose sum is σ = 637956176. Its totient is φ = 294441300.

The previous prime is 441661919. The next prime is 441661999. The reversal of 441661959 is 959166144.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (441661919) and next prime (441661999).

It is not a de Polignac number, because 441661959 - 2⁹ = 441661447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441661919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24536767 + ... + 24536784.

Almost surely, 2^441661959 is an apocalyptic number.

441661959 is a deficient number, since it is larger than the sum of its proper divisors (196294217).

441661959 is a wasteful number, since it uses less digits than its factorization.

441661959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49073557 (or 49073554 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 441661959 is about 21015.7550185569. The cubic root of 441661959 is about 761.5469179137.

The spelling of 441661959 in words is "four hundred forty-one million, six hundred sixty-one thousand, nine hundred fifty-nine".