12644049 has 8 divisors (see below), whose sum is σ = 18391392. Its totient is φ = 7663040.

The previous prime is 12644041. The next prime is 12644057. The reversal of 12644049 is 94044621.

12644049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12644041) and next prime (12644057).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12644049 - 2³ = 12644041 is a prime.

It is a super-2 number, since 2×12644049² = 319743950228802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12644041) 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, 191544 + ... + 191609.

It is an arithmetic number, because the mean of its divisors is an integer number (2298924).

Almost surely, 2^12644049 is an apocalyptic number.

It is an amenable number.

12644049 is a deficient number, since it is larger than the sum of its proper divisors (5747343).

12644049 is a wasteful number, since it uses less digits than its factorization.

12644049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383167.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 12644049 is about 3555.8471564453. The cubic root of 12644049 is about 232.9675272643.

The spelling of 12644049 in words is "twelve million, six hundred forty-four thousand, forty-nine".