12769644 has 24 divisors (see below), whose sum is σ = 30757888. Its totient is φ = 4119120.

The previous prime is 12769643. The next prime is 12769663. The reversal of 12769644 is 44696721.

It is a happy number.

12769644 is digitally balanced in base 2 and base 4, because in such bases 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 (12769643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16792 + ... + 17535.

Almost surely, 2^12769644 is an apocalyptic number.

It is an amenable number.

12769644 is an abundant number, since it is smaller than the sum of its proper divisors (17988244).

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

12769644 is a wasteful number, since it uses less digits than its factorization.

12769644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34365 (or 34363 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 12769644 is about 3573.4638657751. The cubic root of 12769644 is about 233.7363529261.

The spelling of 12769644 in words is "twelve million, seven hundred sixty-nine thousand, six hundred forty-four".