30371474920 has 128 divisors (see below), whose sum is σ = 73184601600. Its totient is φ = 11310624000.

The previous prime is 30371474897. The next prime is 30371474929. The reversal of 30371474920 is 2947417303.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (30371474929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10651495 + ... + 10654345.

It is an arithmetic number, because the mean of its divisors is an integer number (571754700).

Almost surely, 2^30371474920 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 30371474920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36592300800).

30371474920 is an abundant number, since it is smaller than the sum of its proper divisors (42813126680).

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

30371474920 is a wasteful number, since it uses less digits than its factorization.

30371474920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3119 (or 3115 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 30371474920 in words is "thirty billion, three hundred seventy-one million, four hundred seventy-four thousand, nine hundred twenty".