4491331449 has 8 divisors (see below), whose sum is σ = 6532845792. Its totient is φ = 2722019040.

The previous prime is 4491331433. The next prime is 4491331457. The reversal of 4491331449 is 9441331944.

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

It is not a de Polignac number, because 4491331449 - 2⁴ = 4491331433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4491331449.

It is not an unprimeable number, because it can be changed into a prime (4491331409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68050444 + ... + 68050509.

It is an arithmetic number, because the mean of its divisors is an integer number (816605724).

Almost surely, 2^4491331449 is an apocalyptic number.

It is an amenable number.

4491331449 is a deficient number, since it is larger than the sum of its proper divisors (2041514343).

4491331449 is a wasteful number, since it uses less digits than its factorization.

4491331449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136100967.

The product of its digits is 186624, while the sum is 42.

The square root of 4491331449 is about 67017.3966146104. The cubic root of 4491331449 is about 1649.9028346823.

The spelling of 4491331449 in words is "four billion, four hundred ninety-one million, three hundred thirty-one thousand, four hundred forty-nine".