30430980 has 72 divisors (see below), whose sum is σ = 92782872. Its totient is φ = 8073216.

The previous prime is 30430973. The next prime is 30431021. The reversal of 30430980 is 8903403.

It can be written as a sum of positive squares in 4 ways, for example, as 20088324 + 10342656 = 4482^2 + 3216^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52452 + ... + 53028.

It is an arithmetic number, because the mean of its divisors is an integer number (1288651).

Almost surely, 2^30430980 is an apocalyptic number.

30430980 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 30430980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46391436).

30430980 is an abundant number, since it is smaller than the sum of its proper divisors (62351892).

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

30430980 is a wasteful number, since it uses less digits than its factorization.

30430980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885 (or 880 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 30430980 is about 5516.4281922273. The cubic root of 30430980 is about 312.2041317000.

The spelling of 30430980 in words is "thirty million, four hundred thirty thousand, nine hundred eighty".