12090252 has 24 divisors (see below), whose sum is σ = 28429632. Its totient is φ = 3998800.

The previous prime is 12090241. The next prime is 12090259. The reversal of 12090252 is 25209021.

It is not an unprimeable number, because it can be changed into a prime (12090259) 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 7 ways as a sum of consecutive naturals, for example, 2274 + ... + 5417.

It is an arithmetic number, because the mean of its divisors is an integer number (1184568).

Almost surely, 2^12090252 is an apocalyptic number.

12090252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12090252 is an abundant number, since it is smaller than the sum of its proper divisors (16339380).

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

12090252 is a wasteful number, since it uses less digits than its factorization.

12090252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7829 (or 7827 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 12090252 is about 3477.1039673844. The cubic root of 12090252 is about 229.5153752972.

Adding to 12090252 its reverse (25209021), we get a palindrome (37299273).

The spelling of 12090252 in words is "twelve million, ninety thousand, two hundred fifty-two".