242440231 has 8 divisors (see below), whose sum is σ = 265852944. Its totient is φ = 219256320.

The previous prime is 242440223. The next prime is 242440249. The reversal of 242440231 is 132044242.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 242440231 - 2³ = 242440223 is a prime.

It is a super-2 number, since 2×242440231² = 117554531214666722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242441231) 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, 54976 + ... + 59221.

It is an arithmetic number, because the mean of its divisors is an integer number (33231618).

Almost surely, 2^242440231 is an apocalyptic number.

242440231 is a deficient number, since it is larger than the sum of its proper divisors (23412713).

242440231 is a wasteful number, since it uses less digits than its factorization.

242440231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114401.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 242440231 is about 15570.4923172005. The cubic root of 242440231 is about 623.5456153697.

Adding to 242440231 its reverse (132044242), we get a palindrome (374484473).

The spelling of 242440231 in words is "two hundred forty-two million, four hundred forty thousand, two hundred thirty-one".