30138384144 has 160 divisors (see below), whose sum is σ = 88740891648. Its totient is φ = 8724672000.

The previous prime is 30138384083. The next prime is 30138384161. The reversal of 30138384144 is 44148383103.

It is a super-2 number, since 2×30138384144² (a number of 22 digits) contains 22 as substring.

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, 18591654 + ... + 18593274.

Almost surely, 2^30138384144 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 30138384144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44370445824).

30138384144 is an abundant number, since it is smaller than the sum of its proper divisors (58602507504).

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

30138384144 is a wasteful number, since it uses less digits than its factorization.

30138384144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3197 (or 3191 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 30138384144 in words is "thirty billion, one hundred thirty-eight million, three hundred eighty-four thousand, one hundred forty-four".