242240313 has 16 divisors (see below), whose sum is σ = 369345536. Its totient is φ = 138341520.

The previous prime is 242240279. The next prime is 242240357. The reversal of 242240313 is 313042242.

242240313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242240313 - 2¹⁴ = 242223929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 242240313.

It is not an unprimeable number, because it can be changed into a prime (242240213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68220 + ... + 71682.

It is an arithmetic number, because the mean of its divisors is an integer number (23084096).

Almost surely, 2^242240313 is an apocalyptic number.

It is an amenable number.

242240313 is a deficient number, since it is larger than the sum of its proper divisors (127105223).

242240313 is a wasteful number, since it uses less digits than its factorization.

242240313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6804.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 242240313 is about 15564.0712218879. The cubic root of 242240313 is about 623.3741748018.

Adding to 242240313 its reverse (313042242), we get a palindrome (555282555).

The spelling of 242240313 in words is "two hundred forty-two million, two hundred forty thousand, three hundred thirteen".