443420728189 has 8 divisors (see below), whose sum is σ = 444671333888. Its totient is φ = 442170353520.

The previous prime is 443420728181. The next prime is 443420728193. The reversal of 443420728189 is 981827024344.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 443420728189 - 2³ = 443420728181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443420728181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4233724 + ... + 4337194.

It is an arithmetic number, because the mean of its divisors is an integer number (55583916736).

Almost surely, 2^443420728189 is an apocalyptic number.

It is an amenable number.

443420728189 is a deficient number, since it is larger than the sum of its proper divisors (1250605699).

443420728189 is a wasteful number, since it uses less digits than its factorization.

443420728189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115515.

The product of its (nonzero) digits is 3096576, while the sum is 52.

The spelling of 443420728189 in words is "four hundred forty-three billion, four hundred twenty million, seven hundred twenty-eight thousand, one hundred eighty-nine".