30243145401440 has 192 divisors, whose sum is σ = 75278978522496. Its totient is φ = 11459243507712.

The previous prime is 30243145401383. The next prime is 30243145401451. The reversal of 30243145401440 is 4410454134203.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30243145401440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 504383942 + ... + 504443898.

It is an arithmetic number, because the mean of its divisors is an integer number (392078013138).

Almost surely, 2^{30243145401440} 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 30243145401440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37639489261248).

30243145401440 is an abundant number, since it is smaller than the sum of its proper divisors (45035833121056).

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

30243145401440 is a wasteful number, since it uses less digits than its factorization.

30243145401440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61321 (or 61313 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 30243145401440 its reverse (4410454134203), we get a palindrome (34653599535643).

The spelling of 30243145401440 in words is "thirty trillion, two hundred forty-three billion, one hundred forty-five million, four hundred one thousand, four hundred forty".