18483449 has 2 divisors, whose sum is σ = 18483450. Its totient is φ = 18483448.

The previous prime is 18483419. The next prime is 18483463. The reversal of 18483449 is 94438481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11155600 + 7327849 = 3340^2 + 2707^2 .

It is an emirp because it is prime and its reverse (94438481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18483449 - 2¹² = 18479353 is a prime.

It is not a weakly prime, because it can be changed into another prime (18483419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9241724 + 9241725.

It is an arithmetic number, because the mean of its divisors is an integer number (9241725).

Almost surely, 2^18483449 is an apocalyptic number.

It is an amenable number.

18483449 is a deficient number, since it is larger than the sum of its proper divisors (1).

18483449 is an equidigital number, since it uses as much as digits as its factorization.

18483449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 41.

The square root of 18483449 is about 4299.2381883306. The cubic root of 18483449 is about 264.3997282877.

The spelling of 18483449 in words is "eighteen million, four hundred eighty-three thousand, four hundred forty-nine".