243228306 has 32 divisors (see below), whose sum is σ = 500709888. Its totient is φ = 78710400.

The previous prime is 243228259. The next prime is 243228311. The reversal of 243228306 is 603822342.

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, 132511 + ... + 134333.

It is an arithmetic number, because the mean of its divisors is an integer number (15647184).

Almost surely, 2^243228306 is an apocalyptic number.

243228306 is an abundant number, since it is smaller than the sum of its proper divisors (257481582).

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

243228306 is a wasteful number, since it uses less digits than its factorization.

243228306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 243228306 is about 15595.7784672648. The cubic root of 243228306 is about 624.2205160384.

The spelling of 243228306 in words is "two hundred forty-three million, two hundred twenty-eight thousand, three hundred six".