243328900 has 36 divisors (see below), whose sum is σ = 529011280. Its totient is φ = 97149600.

The previous prime is 243328847. The next prime is 243328907. The reversal of 243328900 is 9823342.

It is not an unprimeable number, because it can be changed into a prime (243328907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59935 + ... + 63865.

Almost surely, 2^243328900 is an apocalyptic number.

243328900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243328900 is an abundant number, since it is smaller than the sum of its proper divisors (285682380).

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

243328900 is a wasteful number, since it uses less digits than its factorization.

243328900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4564 (or 4557 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 243328900 is about 15599.0031732800. The cubic root of 243328900 is about 624.3065589077.

The spelling of 243328900 in words is "two hundred forty-three million, three hundred twenty-eight thousand, nine hundred".