242452289 has 4 divisors (see below), whose sum is σ = 242538324. Its totient is φ = 242366256.

The previous prime is 242452277. The next prime is 242452303. The reversal of 242452289 is 982254242.

242452289 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 can be written as a sum of positive squares in 2 ways, for example, as 144600625 + 97851664 = 12025^2 + 9892^2 .

It is a cyclic number.

It is not a de Polignac number, because 242452289 - 2⁸ = 242452033 is a prime.

It is a super-2 number, since 2×242452289² = 117566224882679042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242452489) 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, 38642 + ... + 44475.

It is an arithmetic number, because the mean of its divisors is an integer number (60634581).

Almost surely, 2^242452289 is an apocalyptic number.

It is an amenable number.

242452289 is a deficient number, since it is larger than the sum of its proper divisors (86035).

242452289 is an equidigital number, since it uses as much as digits as its factorization.

242452289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86034.

The product of its digits is 92160, while the sum is 38.

The square root of 242452289 is about 15570.8795191537. The cubic root of 242452289 is about 623.5559527470. Note that the first 3 decimals are identical.

The spelling of 242452289 in words is "two hundred forty-two million, four hundred fifty-two thousand, two hundred eighty-nine".