243239514 has 16 divisors (see below), whose sum is σ = 555976128. Its totient is φ = 69496992.

The previous prime is 243239509. The next prime is 243239531. The reversal of 243239514 is 415932342.

It is a super-2 number, since 2×243239514² = 118330922341912392, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2895667 + ... + 2895750.

It is an arithmetic number, because the mean of its divisors is an integer number (34748508).

Almost surely, 2^243239514 is an apocalyptic number.

243239514 is an abundant number, since it is smaller than the sum of its proper divisors (312736614).

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

243239514 is a wasteful number, since it uses less digits than its factorization.

243239514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5791429.

The product of its digits is 25920, while the sum is 33.

The square root of 243239514 is about 15596.1377911328. The cubic root of 243239514 is about 624.2301039522.

The spelling of 243239514 in words is "two hundred forty-three million, two hundred thirty-nine thousand, five hundred fourteen".