243355242 has 32 divisors (see below), whose sum is σ = 525373632. Its totient is φ = 74703744.

The previous prime is 243355207. The next prime is 243355243. The reversal of 243355242 is 242553342.

It is not an unprimeable number, because it can be changed into a prime (243355243) 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 15 ways as a sum of consecutive naturals, for example, 32233 + ... + 39059.

It is an arithmetic number, because the mean of its divisors is an integer number (16417926).

Almost surely, 2^243355242 is an apocalyptic number.

243355242 is an abundant number, since it is smaller than the sum of its proper divisors (282018390).

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

243355242 is a wasteful number, since it uses less digits than its factorization.

243355242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7302.

The product of its digits is 28800, while the sum is 30.

The square root of 243355242 is about 15599.8474992546. The cubic root of 243355242 is about 624.3290865646.

It can be divided in two parts, 2433 and 55242, that added together give a palindrome (57675).

The spelling of 243355242 in words is "two hundred forty-three million, three hundred fifty-five thousand, two hundred forty-two".