243051442 has 16 divisors (see below), whose sum is σ = 380790720. Its totient is φ = 116131312.

The previous prime is 243051433. The next prime is 243051449. The reversal of 243051442 is 244150342.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (243051449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66909 + ... + 70447.

It is an arithmetic number, because the mean of its divisors is an integer number (23799420).

Almost surely, 2^243051442 is an apocalyptic number.

243051442 is a deficient number, since it is larger than the sum of its proper divisors (137739278).

243051442 is a wasteful number, since it uses less digits than its factorization.

243051442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5057.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 243051442 is about 15590.1071837239. The cubic root of 243051442 is about 624.0691782416.

The spelling of 243051442 in words is "two hundred forty-three million, fifty-one thousand, four hundred forty-two".