242829889 has 3 divisors (see below), whose sum is σ = 242845473. Its totient is φ = 242814306.

The previous prime is 242829833. The next prime is 242829907. The reversal of 242829889 is 988928242.

The square root of 242829889 is 15583.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 242829889 - 2⁷ = 242829761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242829089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7792 + ... + 23374.

It is an arithmetic number, because the mean of its divisors is an integer number (80948491).

Almost surely, 2^242829889 is an apocalyptic number.

242829889 is the 15583-rd square number.

242829889 is the 7792-nd centered octagonal number.

It is an amenable number.

242829889 is a deficient number, since it is larger than the sum of its proper divisors (15584).

242829889 is an frugal number, since it uses more digits than its factorization.

242829889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31166 (or 15583 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 52.

The cubic root of 242829889 is about 623.8794976396.

Multiplying 242829889 by its product of digits (1327104), we get a square (322260517011456 = 17951616²).

The spelling of 242829889 in words is "two hundred forty-two million, eight hundred twenty-nine thousand, eight hundred eighty-nine".