243042104 has 16 divisors (see below), whose sum is σ = 475517520. Its totient is φ = 116237440.

The previous prime is 243042103. The next prime is 243042109. The reversal of 243042104 is 401240342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243042101) 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, 660257 + ... + 660624.

It is an arithmetic number, because the mean of its divisors is an integer number (29719845).

Almost surely, 2^243042104 is an apocalyptic number.

It is an amenable number.

243042104 is a deficient number, since it is larger than the sum of its proper divisors (232475416).

243042104 is a wasteful number, since it uses less digits than its factorization.

243042104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320910 (or 1320906 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 243042104 is about 15589.8076960558. The cubic root of 243042104 is about 624.0611859244.

Adding to 243042104 its reverse (401240342), we get a palindrome (644282446).

The spelling of 243042104 in words is "two hundred forty-three million, forty-two thousand, one hundred four".