243345890304 has 176 divisors, whose sum is σ = 786189488640. Its totient is φ = 73741086720.

The previous prime is 243345890287. The next prime is 243345890309. The reversal of 243345890304 is 403098543342.

243345890304 is a `hidden beast` number, since 2 + 4 + 3 + 34 + 589 + 0 + 30 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (176).

It is a self number, because there is not a number n which added to its sum of digits gives 243345890304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243345890309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95944 + ... + 704199.

Almost surely, 2^243345890304 is an apocalyptic number.

243345890304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243345890304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393094744320).

243345890304 is an abundant number, since it is smaller than the sum of its proper divisors (542843598336).

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

243345890304 is a wasteful number, since it uses less digits than its factorization.

243345890304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800183 (or 800159 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 243345890304 in words is "two hundred forty-three billion, three hundred forty-five million, eight hundred ninety thousand, three hundred four".