243340342 has 16 divisors (see below), whose sum is σ = 428430240. Its totient is φ = 101469888.

The previous prime is 243340337. The next prime is 243340381. The reversal of 243340342 is 243043342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234367 + ... + 235402.

It is an arithmetic number, because the mean of its divisors is an integer number (26776890).

Almost surely, 2^243340342 is an apocalyptic number.

243340342 is a deficient number, since it is larger than the sum of its proper divisors (185089898).

243340342 is a wasteful number, since it uses less digits than its factorization.

243340342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469815.

The product of its (nonzero) digits is 6912, while the sum is 25.

The square root of 243340342 is about 15599.3699231732. The cubic root of 243340342 is about 624.3163442965.

Adding to 243340342 its reverse (243043342), we get a palindrome (486383684).

The spelling of 243340342 in words is "two hundred forty-three million, three hundred forty thousand, three hundred forty-two".