243394342 has 4 divisors (see below), whose sum is σ = 365091516. Its totient is φ = 121697170.

The previous prime is 243394273. The next prime is 243394343. The reversal of 243394342 is 243493342.

243394342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×243394342² = 118481611435225928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243394298 and 243394307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243394343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60848584 + ... + 60848587.

It is an arithmetic number, because the mean of its divisors is an integer number (91272879).

Almost surely, 2^243394342 is an apocalyptic number.

243394342 is a deficient number, since it is larger than the sum of its proper divisors (121697174).

243394342 is a wasteful number, since it uses less digits than its factorization.

243394342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121697173.

The product of its digits is 62208, while the sum is 34.

The square root of 243394342 is about 15601.1006662992. The cubic root of 243394342 is about 624.3625218556.

The spelling of 243394342 in words is "two hundred forty-three million, three hundred ninety-four thousand, three hundred forty-two".