30440144000 has 128 divisors (see below), whose sum is σ = 86493813120. Its totient is φ = 10436582400.

The previous prime is 30440143991. The next prime is 30440144011. The reversal of 30440144000 is 44104403.

It is a tau number, because it is divible by the number of its divisors (128).

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

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, 23894 + ... + 247893.

It is an arithmetic number, because the mean of its divisors is an integer number (675732915).

Almost surely, 2^30440144000 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 30440144000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43246906560).

30440144000 is an abundant number, since it is smaller than the sum of its proper divisors (56053669120).

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

30440144000 is an equidigital number, since it uses as much as digits as its factorization.

30440144000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271823 (or 271801 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 30440144000 its reverse (44104403), we get a palindrome (30484248403).

The spelling of 30440144000 in words is "thirty billion, four hundred forty million, one hundred forty-four thousand".