12730944 has 56 divisors (see below), whose sum is σ = 34267648. Its totient is φ = 4170240.

The previous prime is 12730933. The next prime is 12730957. The reversal of 12730944 is 44903721.

It is a happy number.

It is a super-2 number, since 2×12730944² = 324153870262272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11169 + ... + 12255.

Almost surely, 2^12730944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12730944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17133824).

12730944 is an abundant number, since it is smaller than the sum of its proper divisors (21536704).

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

12730944 is a wasteful number, since it uses less digits than its factorization.

12730944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163 (or 1153 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 12730944 is about 3568.0448427675. The cubic root of 12730944 is about 233.4999915936.

The spelling of 12730944 in words is "twelve million, seven hundred thirty thousand, nine hundred forty-four".