242440111 has 4 divisors (see below), whose sum is σ = 256701312. Its totient is φ = 228178912.

The previous prime is 242440109. The next prime is 242440117. The reversal of 242440111 is 111044242.

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 242440111 - 2¹ = 242440109 is a prime.

It is a super-3 number, since 3×242440111³ (a number of 26 digits) contains 333 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 (242440117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7130575 + ... + 7130608.

It is an arithmetic number, because the mean of its divisors is an integer number (64175328).

Almost surely, 2^242440111 is an apocalyptic number.

242440111 is a deficient number, since it is larger than the sum of its proper divisors (14261201).

242440111 is a wasteful number, since it uses less digits than its factorization.

242440111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14261200.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 242440111 is about 15570.4884637573. The cubic root of 242440111 is about 623.5455124915.

Adding to 242440111 its reverse (111044242), we get a palindrome (353484353).

The spelling of 242440111 in words is "two hundred forty-two million, four hundred forty thousand, one hundred eleven".