242538789 has 8 divisors (see below), whose sum is σ = 323456992. Its totient is φ = 161656560.

The previous prime is 242538757. The next prime is 242538797. The reversal of 242538789 is 987835242.

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

It is not a de Polignac number, because 242538789 - 2⁵ = 242538757 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 (242538089) 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, 22134 + ... + 31224.

It is an arithmetic number, because the mean of its divisors is an integer number (40432124).

Almost surely, 2^242538789 is an apocalyptic number.

It is an amenable number.

242538789 is a deficient number, since it is larger than the sum of its proper divisors (80918203).

242538789 is an equidigital number, since it uses as much as digits as its factorization.

242538789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17987.

The product of its digits is 967680, while the sum is 48.

The square root of 242538789 is about 15573.6568923294. The cubic root of 242538789 is about 623.6300995368.

It can be divided in two parts, 2425 and 38789, that added together give a palindrome (41214).

The spelling of 242538789 in words is "two hundred forty-two million, five hundred thirty-eight thousand, seven hundred eighty-nine".