441909668 has 6 divisors (see below), whose sum is σ = 773341926. Its totient is φ = 220954832.

The previous prime is 441909659. The next prime is 441909731. The reversal of 441909668 is 866909144.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 386436964 + 55472704 = 19658^2 + 7448^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55238705 + ... + 55238712.

It is an arithmetic number, because the mean of its divisors is an integer number (128890321).

Almost surely, 2^441909668 is an apocalyptic number.

It is an amenable number.

441909668 is a deficient number, since it is larger than the sum of its proper divisors (331432258).

441909668 is a wasteful number, since it uses less digits than its factorization.

441909668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110477421 (or 110477419 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 441909668 is about 21021.6476043149. The cubic root of 441909668 is about 761.6892641626.

The spelling of 441909668 in words is "four hundred forty-one million, nine hundred nine thousand, six hundred sixty-eight".