242839860 has 24 divisors (see below), whose sum is σ = 679951776. Its totient is φ = 64757280.

The previous prime is 242839859. The next prime is 242839867. The reversal of 242839860 is 68938242.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242839867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2023606 + ... + 2023725.

It is an arithmetic number, because the mean of its divisors is an integer number (28331324).

Almost surely, 2^242839860 is an apocalyptic number.

242839860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242839860 is an abundant number, since it is smaller than the sum of its proper divisors (437111916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242839860 is a wasteful number, since it uses less digits than its factorization.

242839860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4047343 (or 4047341 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 242839860 is about 15583.3199286930. The cubic root of 242839860 is about 623.8880367001. Note that the first 3 decimals are identical.

It can be divided in two parts, 24283 and 9860, that added together give a palindrome (34143).

The spelling of 242839860 in words is "two hundred forty-two million, eight hundred thirty-nine thousand, eight hundred sixty".