12030280 has 16 divisors (see below), whose sum is σ = 27068220. Its totient is φ = 4812096.

The previous prime is 12030257. The next prime is 12030281. The reversal of 12030280 is 8203021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10876804 + 1153476 = 3298^2 + 1074^2 .

It is not an unprimeable number, because it can be changed into a prime (12030281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150339 + ... + 150418.

Almost surely, 2^12030280 is an apocalyptic number.

12030280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12030280 is an abundant number, since it is smaller than the sum of its proper divisors (15037940).

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

12030280 is a wasteful number, since it uses less digits than its factorization.

12030280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300768 (or 300764 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 12030280 is about 3468.4694030653. The cubic root of 12030280 is about 229.1352531413.

The spelling of 12030280 in words is "twelve million, thirty thousand, two hundred eighty".