242286881 has 2 divisors, whose sum is σ = 242286882. Its totient is φ = 242286880.

The previous prime is 242286871. The next prime is 242286887. The reversal of 242286881 is 188682242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204032656 + 38254225 = 14284^2 + 6185^2 .

It is a cyclic number.

It is not a de Polignac number, because 242286881 - 2⁶ = 242286817 is a prime.

It is a super-2 number, since 2×242286881² = 117405865409416322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (242286887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121143440 + 121143441.

It is an arithmetic number, because the mean of its divisors is an integer number (121143441).

Almost surely, 2^242286881 is an apocalyptic number.

It is an amenable number.

242286881 is a deficient number, since it is larger than the sum of its proper divisors (1).

242286881 is an equidigital number, since it uses as much as digits as its factorization.

242286881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98304, while the sum is 41.

The square root of 242286881 is about 15565.5671595994. The cubic root of 242286881 is about 623.4141178212.

The spelling of 242286881 in words is "two hundred forty-two million, two hundred eighty-six thousand, eight hundred eighty-one".