243084489 has 8 divisors (see below), whose sum is σ = 324218880. Its totient is φ = 162003216.

The previous prime is 243084469. The next prime is 243084511. The reversal of 243084489 is 984480342.

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

It is not a de Polignac number, because 243084489 - 2⁹ = 243083977 is a prime.

It is a super-2 number, since 2×243084489² = 118180137584782242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243084489.

It is not an unprimeable number, because it can be changed into a prime (243084469) 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, 969 + ... + 22070.

It is an arithmetic number, because the mean of its divisors is an integer number (40527360).

Almost surely, 2^243084489 is an apocalyptic number.

It is an amenable number.

243084489 is a deficient number, since it is larger than the sum of its proper divisors (81134391).

243084489 is a wasteful number, since it uses less digits than its factorization.

243084489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26559.

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 243084489 is about 15591.1670185397. The cubic root of 243084489 is about 624.0974612521.

The spelling of 243084489 in words is "two hundred forty-three million, eighty-four thousand, four hundred eighty-nine".