243328386 has 32 divisors (see below), whose sum is σ = 575360640. Its totient is φ = 67124736.

The previous prime is 243328373. The next prime is 243328387. The reversal of 243328386 is 683823342.

It is not an unprimeable number, because it can be changed into a prime (243328387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98671 + ... + 101106.

It is an arithmetic number, because the mean of its divisors is an integer number (17980020).

Almost surely, 2^243328386 is an apocalyptic number.

243328386 is an abundant number, since it is smaller than the sum of its proper divisors (332032254).

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

243328386 is a wasteful number, since it uses less digits than its factorization.

243328386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199818.

The product of its digits is 165888, while the sum is 39.

The square root of 243328386 is about 15598.9866978596. The cubic root of 243328386 is about 624.3061193191.

The spelling of 243328386 in words is "two hundred forty-three million, three hundred twenty-eight thousand, three hundred eighty-six".