443145164 has 48 divisors (see below), whose sum is σ = 974561280. Its totient is φ = 171279360.

The previous prime is 443145161. The next prime is 443145167. The reversal of 443145164 is 461541344.

It is an interprime number because it is at equal distance from previous prime (443145161) and next prime (443145167).

It is a self number, because there is not a number n which added to its sum of digits gives 443145164.

It is not an unprimeable number, because it can be changed into a prime (443145161) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 33452 + ... + 44780.

It is an arithmetic number, because the mean of its divisors is an integer number (20303360).

Almost surely, 2^443145164 is an apocalyptic number.

443145164 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 443145164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487280640).

443145164 is an abundant number, since it is smaller than the sum of its proper divisors (531416116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

443145164 is a wasteful number, since it uses less digits than its factorization.

443145164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11478 (or 11476 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 443145164 is about 21051.0133722821. The cubic root of 443145164 is about 762.3984501150.

The spelling of 443145164 in words is "four hundred forty-three million, one hundred forty-five thousand, one hundred sixty-four".