443442164 has 12 divisors (see below), whose sum is σ = 846571488. Its totient is φ = 201564600.

The previous prime is 443442157. The next prime is 443442173. The reversal of 443442164 is 461244344.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 443442164.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5039072 + ... + 5039159.

It is an arithmetic number, because the mean of its divisors is an integer number (70547624).

Almost surely, 2^443442164 is an apocalyptic number.

443442164 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

443442164 is a deficient number, since it is larger than the sum of its proper divisors (403129324).

443442164 is a wasteful number, since it uses less digits than its factorization.

443442164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10078246 (or 10078244 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

The square root of 443442164 is about 21058.0664829419. The cubic root of 443442164 is about 762.5687342500.

The spelling of 443442164 in words is "four hundred forty-three million, four hundred forty-two thousand, one hundred sixty-four".