243430072 has 16 divisors (see below), whose sum is σ = 483280560. Its totient is φ = 114555264.

The previous prime is 243430069. The next prime is 243430081. The reversal of 243430072 is 270034342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 894828 + ... + 895099.

It is an arithmetic number, because the mean of its divisors is an integer number (30205035).

Almost surely, 2^243430072 is an apocalyptic number.

It is an amenable number.

243430072 is a deficient number, since it is larger than the sum of its proper divisors (239850488).

243430072 is a wasteful number, since it uses less digits than its factorization.

243430072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789950 (or 1789946 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 243430072 is about 15602.2457357907. The cubic root of 243430072 is about 624.3930722527.

The spelling of 243430072 in words is "two hundred forty-three million, four hundred thirty thousand, seventy-two".