12733438 has 4 divisors (see below), whose sum is σ = 19100160. Its totient is φ = 6366718.

The previous prime is 12733433. The next prime is 12733447. The reversal of 12733438 is 83433721.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12733433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3183358 + ... + 3183361.

It is an arithmetic number, because the mean of its divisors is an integer number (4775040).

Almost surely, 2^12733438 is an apocalyptic number.

12733438 is a deficient number, since it is larger than the sum of its proper divisors (6366722).

12733438 is an equidigital number, since it uses as much as digits as its factorization.

12733438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6366721.

The product of its digits is 12096, while the sum is 31.

The square root of 12733438 is about 3568.3943167761. The cubic root of 12733438 is about 233.5152381969.

The spelling of 12733438 in words is "twelve million, seven hundred thirty-three thousand, four hundred thirty-eight".