242233889 has 4 divisors (see below), whose sum is σ = 242625840. Its totient is φ = 241841940.

The previous prime is 242233883. The next prime is 242233891. The reversal of 242233889 is 988332242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242233889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (242233883) 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 3 ways as a sum of consecutive naturals, for example, 195047 + ... + 196284.

It is an arithmetic number, because the mean of its divisors is an integer number (60656460).

Almost surely, 2^242233889 is an apocalyptic number.

It is an amenable number.

242233889 is a deficient number, since it is larger than the sum of its proper divisors (391951).

242233889 is an equidigital number, since it uses as much as digits as its factorization.

242233889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391950.

The product of its digits is 165888, while the sum is 41.

The square root of 242233889 is about 15563.8648477812. The cubic root of 242233889 is about 623.3686643082.

The spelling of 242233889 in words is "two hundred forty-two million, two hundred thirty-three thousand, eight hundred eighty-nine".