443420105 has 16 divisors (see below), whose sum is σ = 564658560. Its totient is φ = 333556608.

The previous prime is 443420093. The next prime is 443420111. The reversal of 443420105 is 501024344.

It is a cyclic number.

It is not a de Polignac number, because 443420105 - 2²⁰ = 442371529 is a prime.

It is a super-2 number, since 2×443420105² = 393242779036422050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25892 + ... + 39461.

It is an arithmetic number, because the mean of its divisors is an integer number (35291160).

Almost surely, 2^443420105 is an apocalyptic number.

It is an amenable number.

443420105 is a deficient number, since it is larger than the sum of its proper divisors (121238455).

443420105 is a wasteful number, since it uses less digits than its factorization.

443420105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65440.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 443420105 is about 21057.5427103924. The cubic root of 443420105 is about 762.5560893972.

Adding to 443420105 its reverse (501024344), we get a palindrome (944444449).

The spelling of 443420105 in words is "four hundred forty-three million, four hundred twenty thousand, one hundred five".