12090300 has 72 divisors (see below), whose sum is σ = 35331072. Its totient is φ = 3192000.

The previous prime is 12090283. The next prime is 12090301. The reversal of 12090300 is 309021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12090300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12090301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57195 + ... + 57405.

Almost surely, 2^12090300 is an apocalyptic number.

12090300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12090300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17665536).

12090300 is an abundant number, since it is smaller than the sum of its proper divisors (23240772).

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

12090300 is a wasteful number, since it uses less digits than its factorization.

12090300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 12090300 is about 3477.1108696733. The cubic root of 12090300 is about 229.5156790329.

Adding to 12090300 its reverse (309021), we get a palindrome (12399321).

The spelling of 12090300 in words is "twelve million, ninety thousand, three hundred".