242085789 has 72 divisors (see below), whose sum is σ = 406328832. Its totient is φ = 138600000.

The previous prime is 242085769. The next prime is 242085793. The reversal of 242085789 is 987580242.

It is not a de Polignac number, because 242085789 - 2⁵ = 242085757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242085719) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2396839 + ... + 2396939.

It is an arithmetic number, because the mean of its divisors is an integer number (5643456).

Almost surely, 2^242085789 is an apocalyptic number.

It is an amenable number.

242085789 is a deficient number, since it is larger than the sum of its proper divisors (164243043).

242085789 is a wasteful number, since it uses less digits than its factorization.

242085789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 242085789 is about 15559.1063046693. The cubic root of 242085789 is about 623.2415974188.

It can be divided in two parts, 2420 and 85789, that added together give a square (88209 = 297²).

The spelling of 242085789 in words is "two hundred forty-two million, eighty-five thousand, seven hundred eighty-nine".