243836620 has 12 divisors (see below), whose sum is σ = 512056944. Its totient is φ = 97534640.

The previous prime is 243836609. The next prime is 243836641. The reversal of 243836620 is 26638342.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6095896 + ... + 6095935.

It is an arithmetic number, because the mean of its divisors is an integer number (42671412).

Almost surely, 2^243836620 is an apocalyptic number.

243836620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243836620 is an abundant number, since it is smaller than the sum of its proper divisors (268220324).

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

243836620 is a wasteful number, since it uses less digits than its factorization.

243836620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12191840 (or 12191838 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 243836620 is about 15615.2688097259. The cubic root of 243836620 is about 624.7404746495.

The spelling of 243836620 in words is "two hundred forty-three million, eight hundred thirty-six thousand, six hundred twenty".