449009234491 has 4 divisors (see below), whose sum is σ = 449243951112. Its totient is φ = 448774517872.

The previous prime is 449009234489. The next prime is 449009234501. The reversal of 449009234491 is 194432900944.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 449009234491 - 2¹ = 449009234489 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449009234291) 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 3 ways as a sum of consecutive naturals, for example, 117355441 + ... + 117359266.

It is an arithmetic number, because the mean of its divisors is an integer number (112310987778).

Almost surely, 2^449009234491 is an apocalyptic number.

449009234491 is a deficient number, since it is larger than the sum of its proper divisors (234716621).

449009234491 is a wasteful number, since it uses less digits than its factorization.

449009234491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234716620.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The spelling of 449009234491 in words is "four hundred forty-nine billion, nine million, two hundred thirty-four thousand, four hundred ninety-one".