12724452 has 144 divisors (see below), whose sum is σ = 38525760. Its totient is φ = 3639168.

The previous prime is 12724447. The next prime is 12724463. The reversal of 12724452 is 25442721.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 240058 + ... + 240110.

It is an arithmetic number, because the mean of its divisors is an integer number (267540).

Almost surely, 2^12724452 is an apocalyptic number.

12724452 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 12724452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19262880).

12724452 is an abundant number, since it is smaller than the sum of its proper divisors (25801308).

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

12724452 is a wasteful number, since it uses less digits than its factorization.

12724452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 90 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 12724452 is about 3567.1349848303. The cubic root of 12724452 is about 233.4602946241.

The spelling of 12724452 in words is "twelve million, seven hundred twenty-four thousand, four hundred fifty-two".