441868647 has 12 divisors (see below), whose sum is σ = 647587640. Its totient is φ = 267798960.

The previous prime is 441868639. The next prime is 441868649. The reversal of 441868647 is 746868144.

It is not a de Polignac number, because 441868647 - 2³ = 441868639 is a prime.

It is a super-2 number, since 2×441868647² = 390495802403221218, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 441868596 and 441868605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441868649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 608272 + ... + 608997.

Almost surely, 2^441868647 is an apocalyptic number.

441868647 is a deficient number, since it is larger than the sum of its proper divisors (205718993).

441868647 is a wasteful number, since it uses less digits than its factorization.

441868647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217294 (or 1217283 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 48.

The square root of 441868647 is about 21020.6718969685. The cubic root of 441868647 is about 761.6656950756.

The spelling of 441868647 in words is "four hundred forty-one million, eight hundred sixty-eight thousand, six hundred forty-seven".