242240543 has 4 divisors (see below), whose sum is σ = 247874088. Its totient is φ = 236607000.

The previous prime is 242240539. The next prime is 242240549. The reversal of 242240543 is 345042242.

It is a happy number.

242240543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 242240543 - 2² = 242240539 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 (242240549) 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, 2816708 + ... + 2816793.

It is an arithmetic number, because the mean of its divisors is an integer number (61968522).

Almost surely, 2^242240543 is an apocalyptic number.

242240543 is a deficient number, since it is larger than the sum of its proper divisors (5633545).

242240543 is an equidigital number, since it uses as much as digits as its factorization.

242240543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5633544.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 242240543 is about 15564.0786106984. The cubic root of 242240543 is about 623.3743720935.

Adding to 242240543 its reverse (345042242), we get a palindrome (587282785).

The spelling of 242240543 in words is "two hundred forty-two million, two hundred forty thousand, five hundred forty-three".