30003980 has 72 divisors (see below), whose sum is σ = 69627600. Its totient is φ = 10845184.

The previous prime is 30003971. The next prime is 30004027. The reversal of 30003980 is 8930003.

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, 167531 + ... + 167709.

It is an arithmetic number, because the mean of its divisors is an integer number (967050).

Almost surely, 2^30003980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30003980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34813800).

30003980 is an abundant number, since it is smaller than the sum of its proper divisors (39623620).

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

30003980 is a wasteful number, since it uses less digits than its factorization.

30003980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 30003980 is about 5477.5888856321. The cubic root of 30003980 is about 310.7369908604.

Adding to 30003980 its reverse (8930003), we get a palindrome (38933983).

The spelling of 30003980 in words is "thirty million, three thousand, nine hundred eighty".