12016449 has 12 divisors (see below), whose sum is σ = 17456400. Its totient is φ = 7965144.

The previous prime is 12016441. The next prime is 12016481. The reversal of 12016449 is 94461021.

12016449 is a `hidden beast` number, since 12 + 0 + 1 + 644 + 9 = 666.

It is not a de Polignac number, because 12016449 - 2³ = 12016441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12016441) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2119 + ... + 5340.

It is an arithmetic number, because the mean of its divisors is an integer number (1454700).

Almost surely, 2^12016449 is an apocalyptic number.

It is an amenable number.

12016449 is a deficient number, since it is larger than the sum of its proper divisors (5439951).

12016449 is a wasteful number, since it uses less digits than its factorization.

12016449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7644 (or 7641 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 12016449 is about 3466.4750107278. The cubic root of 12016449 is about 229.0474085532.

The spelling of 12016449 in words is "twelve million, sixteen thousand, four hundred forty-nine".