30398239872 has 1280 divisors, whose sum is σ = 126895507200. Its totient is φ = 6967296000.

The previous prime is 30398239853. The next prime is 30398239919. The reversal of 30398239872 is 27893289303.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 159 ways as a sum of consecutive naturals, for example, 300972622 + ... + 300972722.

It is an arithmetic number, because the mean of its divisors is an integer number (99137115).

Almost surely, 2^30398239872 is an apocalyptic number.

30398239872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30398239872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63447753600).

30398239872 is an abundant number, since it is smaller than the sum of its proper divisors (96497267328).

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

30398239872 is a wasteful number, since it uses less digits than its factorization.

30398239872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 30398239872 in words is "thirty billion, three hundred ninety-eight million, two hundred thirty-nine thousand, eight hundred seventy-two".