12298644 has 18 divisors (see below), whose sum is σ = 31088330. Its totient is φ = 4099536.

The previous prime is 12298621. The next prime is 12298651. The reversal of 12298644 is 44689221.

12298644 is a `hidden beast` number, since 1 + 2 + 2 + 9 + 8 + 644 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7290000 + 5008644 = 2700^2 + 2238^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 341629 = 12298644 / (1 + 2 + 2 + 9 + 8 + 6 + 4 + 4).

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 12298599 and 12298608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 170779 + ... + 170850.

Almost surely, 2^12298644 is an apocalyptic number.

It is an amenable number.

12298644 is an abundant number, since it is smaller than the sum of its proper divisors (18789686).

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

12298644 is a wasteful number, since it uses less digits than its factorization.

12298644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341639 (or 341634 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 12298644 is about 3506.9422578651. The cubic root of 12298644 is about 230.8265409457.

The spelling of 12298644 in words is "twelve million, two hundred ninety-eight thousand, six hundred forty-four".