243703140 has 48 divisors (see below), whose sum is σ = 687301440. Its totient is φ = 64517760.

The previous prime is 243703133. The next prime is 243703171. The reversal of 243703140 is 41307342.

243703140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 243703140.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6271 + ... + 22950.

It is an arithmetic number, because the mean of its divisors is an integer number (14318780).

Almost surely, 2^243703140 is an apocalyptic number.

243703140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243703140 is an abundant number, since it is smaller than the sum of its proper divisors (443598300).

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

243703140 is a wasteful number, since it uses less digits than its factorization.

243703140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29372 (or 29370 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 243703140 is about 15610.9942028046. The cubic root of 243703140 is about 624.6264562553.

The spelling of 243703140 in words is "two hundred forty-three million, seven hundred three thousand, one hundred forty".