243420008 has 64 divisors (see below), whose sum is σ = 524905920. Its totient is φ = 104832000.

The previous prime is 243419989. The next prime is 243420041. The reversal of 243420008 is 800024342.

243420008 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 231083 + ... + 232133.

It is an arithmetic number, because the mean of its divisors is an integer number (8201655).

Almost surely, 2^243420008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243420008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262452960).

243420008 is an abundant number, since it is smaller than the sum of its proper divisors (281485912).

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

243420008 is a wasteful number, since it uses less digits than its factorization.

243420008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218 (or 1214 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 243420008 is about 15601.9232147835. The cubic root of 243420008 is about 624.3844674839.

The spelling of 243420008 in words is "two hundred forty-three million, four hundred twenty thousand, eight".