12801644 has 12 divisors (see below), whose sum is σ = 23175600. Its totient is φ = 6180048.

The previous prime is 12801637. The next prime is 12801647. The reversal of 12801644 is 44610821.

12801644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12801647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55064 + ... + 55295.

It is an arithmetic number, because the mean of its divisors is an integer number (1931300).

Almost surely, 2^12801644 is an apocalyptic number.

It is an amenable number.

12801644 is a deficient number, since it is larger than the sum of its proper divisors (10373956).

12801644 is a wasteful number, since it uses less digits than its factorization.

12801644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110392 (or 110390 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 12801644 is about 3577.9385126075. The cubic root of 12801644 is about 233.9314333891.

The spelling of 12801644 in words is "twelve million, eight hundred one thousand, six hundred forty-four".