30948030 has 48 divisors (see below), whose sum is σ = 82437264. Its totient is φ = 8050560.

The previous prime is 30948023. The next prime is 30948053. The reversal of 30948030 is 3084903.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30947985 and 30948003.

It is a congruent number.

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, 504 + ... + 7883.

It is an arithmetic number, because the mean of its divisors is an integer number (1717443).

Almost surely, 2^30948030 is an apocalyptic number.

30948030 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 30948030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41218632).

30948030 is an abundant number, since it is smaller than the sum of its proper divisors (51489234).

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

30948030 is a wasteful number, since it uses less digits than its factorization.

30948030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8441 (or 8438 counting only the distinct ones).

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

The square root of 30948030 is about 5563.0953613973. The cubic root of 30948030 is about 313.9624212943.

The spelling of 30948030 in words is "thirty million, nine hundred forty-eight thousand, thirty".