242441977 has 2 divisors, whose sum is σ = 242441978. Its totient is φ = 242441976.

The previous prime is 242441951. The next prime is 242441987. The reversal of 242441977 is 779144242.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126427536 + 116014441 = 11244^2 + 10771^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242441977 is a prime.

It is a super-2 number, since 2×242441977² = 117556224423337058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (242441987) 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 as a sum of consecutive naturals, namely, 121220988 + 121220989.

It is an arithmetic number, because the mean of its divisors is an integer number (121220989).

Almost surely, 2^242441977 is an apocalyptic number.

It is an amenable number.

242441977 is a deficient number, since it is larger than the sum of its proper divisors (1).

242441977 is an equidigital number, since it uses as much as digits as its factorization.

242441977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 40.

The square root of 242441977 is about 15570.5483846909. The cubic root of 242441977 is about 623.5471122445.

The spelling of 242441977 in words is "two hundred forty-two million, four hundred forty-one thousand, nine hundred seventy-seven".