243023680 has 56 divisors (see below), whose sum is σ = 609173280. Its totient is φ = 92090880.

The previous prime is 243023657. The next prime is 243023701. The reversal of 243023680 is 86320342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13906 + ... + 26065.

Almost surely, 2^243023680 is an apocalyptic number.

243023680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243023680 is an abundant number, since it is smaller than the sum of its proper divisors (366149600).

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

243023680 is a wasteful number, since it uses less digits than its factorization.

243023680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40007 (or 39997 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 243023680 is about 15589.2167859710. The cubic root of 243023680 is about 624.0454163744.

The spelling of 243023680 in words is "two hundred forty-three million, twenty-three thousand, six hundred eighty".