243354642 has 8 divisors (see below), whose sum is σ = 486709296. Its totient is φ = 81118212.

The previous prime is 243354637. The next prime is 243354647. The reversal of 243354642 is 246453342.

It is an interprime number because it is at equal distance from previous prime (243354637) and next prime (243354647).

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

243354642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (243354647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20279548 + ... + 20279559.

It is an arithmetic number, because the mean of its divisors is an integer number (60838662).

Almost surely, 2^243354642 is an apocalyptic number.

243354642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

243354642 is a wasteful number, since it uses less digits than its factorization.

243354642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40559112.

The product of its digits is 69120, while the sum is 33.

The square root of 243354642 is about 15599.8282682855. The cubic root of 243354642 is about 624.3285734632.

It can be divided in two parts, 2433 and 54642, that added together give a palindrome (57075).

The spelling of 243354642 in words is "two hundred forty-three million, three hundred fifty-four thousand, six hundred forty-two".