242372239 has 4 divisors (see below), whose sum is σ = 242482824. Its totient is φ = 242261656.

The previous prime is 242372171. The next prime is 242372293. The reversal of 242372239 is 932273242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242372239 - 2¹⁹ = 241847951 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 (242372839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51937 + ... + 56410.

It is an arithmetic number, because the mean of its divisors is an integer number (60620706).

Almost surely, 2^242372239 is an apocalyptic number.

242372239 is a deficient number, since it is larger than the sum of its proper divisors (110585).

242372239 is a wasteful number, since it uses less digits than its factorization.

242372239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110584.

The product of its digits is 36288, while the sum is 34.

The square root of 242372239 is about 15568.3088034635. The cubic root of 242372239 is about 623.4873191081.

The spelling of 242372239 in words is "two hundred forty-two million, three hundred seventy-two thousand, two hundred thirty-nine".