242543829 has 32 divisors (see below), whose sum is σ = 362133504. Its totient is φ = 143137280.

The previous prime is 242543813. The next prime is 242543831. The reversal of 242543829 is 928345242.

It is not a de Polignac number, because 242543829 - 2⁴ = 242543813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242543929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 547282 + ... + 547724.

It is an arithmetic number, because the mean of its divisors is an integer number (11316672).

Almost surely, 2^242543829 is an apocalyptic number.

It is an amenable number.

242543829 is a deficient number, since it is larger than the sum of its proper divisors (119589675).

242543829 is a wasteful number, since it uses less digits than its factorization.

242543829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857.

The product of its digits is 138240, while the sum is 39.

The square root of 242543829 is about 15573.8187031954. The cubic root of 242543829 is about 623.6344192223.

The spelling of 242543829 in words is "two hundred forty-two million, five hundred forty-three thousand, eight hundred twenty-nine".