12044645 has 8 divisors (see below), whose sum is σ = 14534520. Its totient is φ = 9581760.

The previous prime is 12044639. The next prime is 12044671. The reversal of 12044645 is 54644021.

It can be written as a sum of positive squares in 4 ways, for example, as 1560001 + 10484644 = 1249^2 + 3238^2 .

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

It is not a de Polignac number, because 12044645 - 2⁶ = 12044581 is a prime.

It is a congruent number.

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, 5750 + ... + 7559.

It is an arithmetic number, because the mean of its divisors is an integer number (1816815).

Almost surely, 2^12044645 is an apocalyptic number.

It is an amenable number.

12044645 is a deficient number, since it is larger than the sum of its proper divisors (2489875).

12044645 is a wasteful number, since it uses less digits than its factorization.

12044645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13495.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 12044645 is about 3470.5395834077. The cubic root of 12044645 is about 229.2264180650.

Adding to 12044645 its reverse (54644021), we get a palindrome (66688666).

The spelling of 12044645 in words is "twelve million, forty-four thousand, six hundred forty-five".