243345435408 has 160 divisors (see below), whose sum is σ = 710772067200. Its totient is φ = 79695373824.

The previous prime is 243345435407. The next prime is 243345435451. The reversal of 243345435408 is 804534543342.

243345435408 is a `hidden beast` number, since 24 + 3 + 3 + 45 + 43 + 540 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (243345435401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11248410 + ... + 11270022.

It is an arithmetic number, because the mean of its divisors is an integer number (4442325420).

Almost surely, 2^243345435408 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 243345435408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355386033600).

243345435408 is an abundant number, since it is smaller than the sum of its proper divisors (467426631792).

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

243345435408 is a wasteful number, since it uses less digits than its factorization.

243345435408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22086 (or 22074 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 45.

The spelling of 243345435408 in words is "two hundred forty-three billion, three hundred forty-five million, four hundred thirty-five thousand, four hundred eight".