243742152 has 32 divisors (see below), whose sum is σ = 612770400. Its totient is φ = 80792064.

The previous prime is 243742151. The next prime is 243742159. The reversal of 243742152 is 251247342.

243742152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×243742152² = 118820473323182208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243742151) 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, 24073 + ... + 32664.

It is an arithmetic number, because the mean of its divisors is an integer number (19149075).

Almost surely, 2^243742152 is an apocalyptic number.

It is an amenable number.

243742152 is an abundant number, since it is smaller than the sum of its proper divisors (369028248).

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

243742152 is a wasteful number, since it uses less digits than its factorization.

243742152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56925 (or 56921 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 243742152 is about 15612.2436568227. The cubic root of 243742152 is about 624.6597845458.

Adding to 243742152 its reverse (251247342), we get a palindrome (494989494).

The spelling of 243742152 in words is "two hundred forty-three million, seven hundred forty-two thousand, one hundred fifty-two".