220242489 has 8 divisors (see below), whose sum is σ = 293826912. Its totient is φ = 146743200.

The previous prime is 220242481. The next prime is 220242493. The reversal of 220242489 is 984242022.

It is a happy number.

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

It is not a de Polignac number, because 220242489 - 2³ = 220242481 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (220242481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14979 + ... + 25784.

It is an arithmetic number, because the mean of its divisors is an integer number (36728364).

Almost surely, 2^220242489 is an apocalyptic number.

It is an amenable number.

220242489 is a deficient number, since it is larger than the sum of its proper divisors (73584423).

220242489 is a wasteful number, since it uses less digits than its factorization.

220242489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42567.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 220242489 is about 14840.5690254788. The cubic root of 220242489 is about 603.9027892395.

The spelling of 220242489 in words is "two hundred twenty million, two hundred forty-two thousand, four hundred eighty-nine".