30908130 has 64 divisors (see below), whose sum is σ = 81475200. Its totient is φ = 7441920.

The previous prime is 30908089. The next prime is 30908167. The reversal of 30908130 is 3180903.

It is a self number, because there is not a number n which added to its sum of digits gives 30908130.

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, 75366 + ... + 75774.

It is an arithmetic number, because the mean of its divisors is an integer number (1273050).

Almost surely, 2^30908130 is an apocalyptic number.

30908130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30908130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40737600).

30908130 is an abundant number, since it is smaller than the sum of its proper divisors (50567070).

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

30908130 is a wasteful number, since it uses less digits than its factorization.

30908130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 30908130 is about 5559.5080717632. The cubic root of 30908130 is about 313.8274370640.

The spelling of 30908130 in words is "thirty million, nine hundred eight thousand, one hundred thirty".