8442662449 has 8 divisors (see below), whose sum is σ = 9094280832. Its totient is φ = 7791355920.

The previous prime is 8442662447. The next prime is 8442662453. The reversal of 8442662449 is 9442662448.

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

It is a cyclic number.

It is not a de Polignac number, because 8442662449 - 2¹ = 8442662447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8442662443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20137 + ... + 131494.

It is an arithmetic number, because the mean of its divisors is an integer number (1136785104).

Almost surely, 2^8442662449 is an apocalyptic number.

It is an amenable number.

8442662449 is a deficient number, since it is larger than the sum of its proper divisors (651618383).

8442662449 is a wasteful number, since it uses less digits than its factorization.

8442662449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155927.

The product of its digits is 2654208, while the sum is 49.

The square root of 8442662449 is about 91883.9618703939. The cubic root of 8442662449 is about 2036.2283290548.

Subtracting 8442662449 from its reverse (9442662448), we obtain a palindrome (999999999).

The spelling of 8442662449 in words is "eight billion, four hundred forty-two million, six hundred sixty-two thousand, four hundred forty-nine".