443142489 has 16 divisors (see below), whose sum is σ = 619028480. Its totient is φ = 281627280.

The previous prime is 443142457. The next prime is 443142493. The reversal of 443142489 is 984241344.

It is not a de Polignac number, because 443142489 - 2⁵ = 443142457 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (443142409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29329 + ... + 41790.

It is an arithmetic number, because the mean of its divisors is an integer number (38689280).

Almost surely, 2^443142489 is an apocalyptic number.

It is an amenable number.

443142489 is a deficient number, since it is larger than the sum of its proper divisors (175885991).

443142489 is a wasteful number, since it uses less digits than its factorization.

443142489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71220.

The product of its digits is 110592, while the sum is 39.

The square root of 443142489 is about 21050.9498360525. The cubic root of 443142489 is about 762.3969160654.

The spelling of 443142489 in words is "four hundred forty-three million, one hundred forty-two thousand, four hundred eighty-nine".