12738384 has 50 divisors (see below), whose sum is σ = 36872330. Its totient is φ = 4245696.

The previous prime is 12738373. The next prime is 12738419. The reversal of 12738384 is 48383721.

12738384 is a `hidden beast` number, since 1 + 273 + 8 + 384 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12446784 + 291600 = 3528^2 + 540^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3619 + ... + 6210.

Almost surely, 2^12738384 is an apocalyptic number.

It is an amenable number.

12738384 is an abundant number, since it is smaller than the sum of its proper divisors (24133946).

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

12738384 is an equidigital number, since it uses as much as digits as its factorization.

12738384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9849 (or 9834 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 12738384 is about 3569.0872782828. The cubic root of 12738384 is about 233.5454687563.

The spelling of 12738384 in words is "twelve million, seven hundred thirty-eight thousand, three hundred eighty-four".