30012580 has 48 divisors (see below), whose sum is σ = 68690160. Its totient is φ = 10948608.

The previous prime is 30012569. The next prime is 30012589. The reversal of 30012580 is 8521003.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 135424 + 29877156 = 368^2 + 5466^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30012589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22492 + ... + 23788.

It is an arithmetic number, because the mean of its divisors is an integer number (1431045).

Almost surely, 2^30012580 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 30012580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34345080).

30012580 is an abundant number, since it is smaller than the sum of its proper divisors (38677580).

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

30012580 is a wasteful number, since it uses less digits than its factorization.

30012580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408 (or 1406 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 30012580 is about 5478.3738463161. The cubic root of 30012580 is about 310.7666767314.

Adding to 30012580 its reverse (8521003), we get a palindrome (38533583).

It can be divided in two parts, 300125 and 80, that multiplied together give a 4-th power (24010000 = 70⁴).

The spelling of 30012580 in words is "thirty million, twelve thousand, five hundred eighty".