243200442 has 16 divisors (see below), whose sum is σ = 488135232. Its totient is φ = 80777760.

The previous prime is 243200423. The next prime is 243200443. The reversal of 243200442 is 244002342.

It is a super-3 number, since 3×243200442³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (243200443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70438 + ... + 73809.

It is an arithmetic number, because the mean of its divisors is an integer number (30508452).

Almost surely, 2^243200442 is an apocalyptic number.

243200442 is an abundant number, since it is smaller than the sum of its proper divisors (244934790).

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

243200442 is a wasteful number, since it uses less digits than its factorization.

243200442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144533.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 243200442 is about 15594.8851230139. The cubic root of 243200442 is about 624.1966784282.

Adding to 243200442 its reverse (244002342), we get a palindrome (487202784).

The spelling of 243200442 in words is "two hundred forty-three million, two hundred thousand, four hundred forty-two".