242440843 has 2 divisors, whose sum is σ = 242440844. Its totient is φ = 242440842.

The previous prime is 242440829. The next prime is 242440871. The reversal of 242440843 is 348044242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242440843 - 2²⁵ = 208886411 is a prime.

It is equal to p_13288027 and since 242440843 and 13288027 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (242440873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121220421 + 121220422.

It is an arithmetic number, because the mean of its divisors is an integer number (121220422).

Almost surely, 2^242440843 is an apocalyptic number.

242440843 is a deficient number, since it is larger than the sum of its proper divisors (1).

242440843 is an equidigital number, since it uses as much as digits as its factorization.

242440843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24576, while the sum is 31.

The square root of 242440843 is about 15570.5119697459. The cubic root of 242440843 is about 623.5461400483.

The spelling of 242440843 in words is "two hundred forty-two million, four hundred forty thousand, eight hundred forty-three".