12733472 has 12 divisors (see below), whose sum is σ = 25069086. Its totient is φ = 6366720.

The previous prime is 12733453. The next prime is 12733499. The reversal of 12733472 is 27433721.

It can be written as a sum of positive squares in only one way, i.e., 10784656 + 1948816 = 3284^2 + 1396^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198929 + ... + 198992.

Almost surely, 2^12733472 is an apocalyptic number.

It is an amenable number.

12733472 is a deficient number, since it is larger than the sum of its proper divisors (12335614).

12733472 is an equidigital number, since it uses as much as digits as its factorization.

12733472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397931 (or 397923 counting only the distinct ones).

The product of its digits is 7056, while the sum is 29.

The square root of 12733472 is about 3568.3990808204. The cubic root of 12733472 is about 233.5154460358.

The spelling of 12733472 in words is "twelve million, seven hundred thirty-three thousand, four hundred seventy-two".