30025280 has 56 divisors (see below), whose sum is σ = 72283320. Its totient is φ = 11878400.

The previous prime is 30025279. The next prime is 30025291. The reversal of 30025280 is 8252003.

It can be written as a sum of positive squares in 4 ways, for example, as 2483776 + 27541504 = 1576^2 + 5248^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31856 + ... + 32784.

Almost surely, 2^30025280 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 30025280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36141660).

30025280 is an abundant number, since it is smaller than the sum of its proper divisors (42258040).

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

30025280 is a wasteful number, since it uses less digits than its factorization.

30025280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047 (or 1037 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 30025280 is about 5479.5328268019. The cubic root of 30025280 is about 310.8105047998.

Adding to 30025280 its reverse (8252003), we get a palindrome (38277283).

The spelling of 30025280 in words is "thirty million, twenty-five thousand, two hundred eighty".