12287444 has 12 divisors (see below), whose sum is σ = 23157204. Its totient is φ = 5671104.

The previous prime is 12287437. The next prime is 12287449. The reversal of 12287444 is 44478221.

It can be written as a sum of positive squares in 2 ways, for example, as 659344 + 11628100 = 812^2 + 3410^2 .

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 12287444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12287449) 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, 118097 + ... + 118200.

It is an arithmetic number, because the mean of its divisors is an integer number (1929767).

Almost surely, 2^12287444 is an apocalyptic number.

It is an amenable number.

12287444 is a deficient number, since it is larger than the sum of its proper divisors (10869760).

12287444 is a wasteful number, since it uses less digits than its factorization.

12287444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236314 (or 236312 counting only the distinct ones).

The product of its digits is 14336, while the sum is 32.

The square root of 12287444 is about 3505.3450614740. The cubic root of 12287444 is about 230.7564507680.

The spelling of 12287444 in words is "twelve million, two hundred eighty-seven thousand, four hundred forty-four".