30243440000 has 320 divisors, whose sum is σ = 80442687600. Its totient is φ = 11289600000.

The previous prime is 30243439999. The next prime is 30243440033. The reversal of 30243440000 is 4434203.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 153519902 + ... + 153520098.

Almost surely, 2^30243440000 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 30243440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40221343800).

30243440000 is an abundant number, since it is smaller than the sum of its proper divisors (50199247600).

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

30243440000 is a wasteful number, since it uses less digits than its factorization.

30243440000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 30243440000 its reverse (4434203), we get a palindrome (30247874203).

The spelling of 30243440000 in words is "thirty billion, two hundred forty-three million, four hundred forty thousand".