12749968 has 80 divisors (see below), whose sum is σ = 31426560. Its totient is φ = 4867200.

The previous prime is 12749953. The next prime is 12750011. The reversal of 12749968 is 86994721.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97263 + ... + 97393.

It is an arithmetic number, because the mean of its divisors is an integer number (392832).

Almost surely, 2^12749968 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 12749968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15713280).

12749968 is an abundant number, since it is smaller than the sum of its proper divisors (18676592).

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

12749968 is a wasteful number, since it uses less digits than its factorization.

12749968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 230 counting only the distinct ones).

The product of its digits is 217728, while the sum is 46.

The square root of 12749968 is about 3570.7097333723. The cubic root of 12749968 is about 233.6162409738.

The spelling of 12749968 in words is "twelve million, seven hundred forty-nine thousand, nine hundred sixty-eight".