243028089 has 24 divisors (see below), whose sum is σ = 356428800. Its totient is φ = 159552288.

The previous prime is 243028063. The next prime is 243028111. The reversal of 243028089 is 980820342.

It is not a de Polignac number, because 243028089 - 2⁵ = 243028057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243028589) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169594 + ... + 171020.

It is an arithmetic number, because the mean of its divisors is an integer number (14851200).

Almost surely, 2^243028089 is an apocalyptic number.

It is an amenable number.

243028089 is a deficient number, since it is larger than the sum of its proper divisors (113400711).

243028089 is a wasteful number, since it uses less digits than its factorization.

243028089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709 (or 1706 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 243028089 is about 15589.3581971805. The cubic root of 243028089 is about 624.0491902174.

The spelling of 243028089 in words is "two hundred forty-three million, twenty-eight thousand, eighty-nine".