30871230 has 48 divisors (see below), whose sum is σ = 80241840. Its totient is φ = 7597824.

The previous prime is 30871229. The next prime is 30871249. The reversal of 30871230 is 3217803.

It is a self number, because there is not a number n which added to its sum of digits gives 30871230.

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, 2026 + ... + 8114.

It is an arithmetic number, because the mean of its divisors is an integer number (1671705).

Almost surely, 2^30871230 is an apocalyptic number.

30871230 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 30871230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40120920).

30871230 is an abundant number, since it is smaller than the sum of its proper divisors (49370610).

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

30871230 is a wasteful number, since it uses less digits than its factorization.

30871230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6125 (or 6112 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 30871230 is about 5556.1884417287. The cubic root of 30871230 is about 313.7024985890.

The spelling of 30871230 in words is "thirty million, eight hundred seventy-one thousand, two hundred thirty".