243355642 has 8 divisors (see below), whose sum is σ = 376808832. Its totient is φ = 117752700.

The previous prime is 243355627. The next prime is 243355661. The reversal of 243355642 is 246553342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 243355598 and 243355607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1962484 + ... + 1962607.

It is an arithmetic number, because the mean of its divisors is an integer number (47101104).

Almost surely, 2^243355642 is an apocalyptic number.

243355642 is a deficient number, since it is larger than the sum of its proper divisors (133453190).

243355642 is a wasteful number, since it uses less digits than its factorization.

243355642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3925124.

The product of its digits is 86400, while the sum is 34.

The square root of 243355642 is about 15599.8603198875. The cubic root of 243355642 is about 624.3294286318.

The spelling of 243355642 in words is "two hundred forty-three million, three hundred fifty-five thousand, six hundred forty-two".