30304132240 has 80 divisors (see below), whose sum is σ = 73003809600. Its totient is φ = 11691270656.

The previous prime is 30304132231. The next prime is 30304132253. The reversal of 30304132240 is 4223140303.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

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, 189591 + ... + 310729.

It is an arithmetic number, because the mean of its divisors is an integer number (912547620).

Almost surely, 2^30304132240 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 30304132240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36501904800).

30304132240 is an abundant number, since it is smaller than the sum of its proper divisors (42699677360).

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

30304132240 is a wasteful number, since it uses less digits than its factorization.

30304132240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121264 (or 121258 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 30304132240 its reverse (4223140303), we get a palindrome (34527272543).

The spelling of 30304132240 in words is "thirty billion, three hundred four million, one hundred thirty-two thousand, two hundred forty".