243970928 has 20 divisors (see below), whose sum is σ = 472951128. Its totient is φ = 121919040.

The previous prime is 243970921. The next prime is 243970973. The reversal of 243970928 is 829079342.

243970928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243970921) 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, 41075 + ... + 46637.

Almost surely, 2^243970928 is an apocalyptic number.

It is an amenable number.

243970928 is a deficient number, since it is larger than the sum of its proper divisors (228980200).

243970928 is a wasteful number, since it uses less digits than its factorization.

243970928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8312 (or 8306 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 243970928 is about 15619.5687520495. The cubic root of 243970928 is about 624.8551583294.

The spelling of 243970928 in words is "two hundred forty-three million, nine hundred seventy thousand, nine hundred twenty-eight".