30185470980 has 432 divisors, whose sum is σ = 115846292016. Its totient is φ = 6317015040.

The previous prime is 30185470979. The next prime is 30185470993. The reversal of 30185470980 is 8907458103.

30185470980 is a `hidden beast` number, since 3 + 0 + 18 + 547 + 0 + 98 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 5073997824 + 25111473156 = 71232^2 + 158466^2 .

It is a super-2 number, since 2×30185470980² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 5545060 + ... + 5550500.

It is an arithmetic number, because the mean of its divisors is an integer number (268162713).

Almost surely, 2^30185470980 is an apocalyptic number.

30185470980 is a gapful number since it is divisible by the number (30) 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 30185470980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57923146008).

30185470980 is an abundant number, since it is smaller than the sum of its proper divisors (85660821036).

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

30185470980 is a wasteful number, since it uses less digits than its factorization.

30185470980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5524 (or 5512 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 30185470980 in words is "thirty billion, one hundred eighty-five million, four hundred seventy thousand, nine hundred eighty".