12438252 has 72 divisors (see below), whose sum is σ = 33668880. Its totient is φ = 3968640.

The previous prime is 12438247. The next prime is 12438263. The reversal of 12438252 is 25283421.

It is a super-2 number, since 2×12438252² = 309420225631008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (3840) is a multiple of the sum of its prime factors (160).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234658 + ... + 234710.

Almost surely, 2^12438252 is an apocalyptic number.

12438252 is a gapful number since it is divisible by the number (12) 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 12438252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16834440).

12438252 is an abundant number, since it is smaller than the sum of its proper divisors (21230628).

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

12438252 is a wasteful number, since it uses less digits than its factorization.

12438252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 99 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 12438252 is about 3526.7906090382. The cubic root of 12438252 is about 231.6966655998.

The spelling of 12438252 in words is "twelve million, four hundred thirty-eight thousand, two hundred fifty-two".