12390252 has 24 divisors (see below), whose sum is σ = 33040896. Its totient is φ = 3540048.

The previous prime is 12390251. The next prime is 12390253. The reversal of 12390252 is 25209321.

It is an interprime number because it is at equal distance from previous prime (12390251) and next prime (12390253).

It is not an unprimeable number, because it can be changed into a prime (12390251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73668 + ... + 73835.

It is an arithmetic number, because the mean of its divisors is an integer number (1376704).

Almost surely, 2^12390252 is an apocalyptic number.

12390252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12390252 is an abundant number, since it is smaller than the sum of its proper divisors (20650644).

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

12390252 is a wasteful number, since it uses less digits than its factorization.

12390252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147517 (or 147515 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 12390252 is about 3519.9789772099. The cubic root of 12390252 is about 231.3982373637.

Adding to 12390252 its reverse (25209321), we get a palindrome (37599573).

The spelling of 12390252 in words is "twelve million, three hundred ninety thousand, two hundred fifty-two".