441640168 has 16 divisors (see below), whose sum is σ = 828306180. Its totient is φ = 220758528.

The previous prime is 441640139. The next prime is 441640211. The reversal of 441640168 is 861046144.

It can be written as a sum of positive squares in 2 ways, for example, as 366263044 + 75377124 = 19138^2 + 8682^2 .

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, 40696 + ... + 50392.

Almost surely, 2^441640168 is an apocalyptic number.

It is an amenable number.

441640168 is a deficient number, since it is larger than the sum of its proper divisors (386666012).

441640168 is a wasteful number, since it uses less digits than its factorization.

441640168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15396 (or 15392 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 441640168 is about 21015.2365677858. The cubic root of 441640168 is about 761.5343931448.

The spelling of 441640168 in words is "four hundred forty-one million, six hundred forty thousand, one hundred sixty-eight".