449043391449 has 27 divisors (see below), whose sum is σ = 666732685437. Its totient is φ = 291223141344.

The previous prime is 449043391429. The next prime is 449043391463. The reversal of 449043391449 is 944193340944.

The square root of 449043391449 is 670107.

It is a perfect power (a square), and thus also a powerful number.

449043391449 is a `hidden beast` number, since 4 + 490 + 4 + 3 + 3 + 9 + 144 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7403397849 + 441639993600 = 86043^2 + 664560^2 .

It is not a de Polignac number, because 449043391449 - 2¹¹ = 449043389401 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 449043391395 and 449043391404.

It is not an unprimeable number, because it can be changed into a prime (449043391429) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 74378859 + ... + 74384895.

Almost surely, 2^449043391449 is an apocalyptic number.

449043391449 is the 670107-th square number.

449043391449 is the 335054-th centered octagonal number.

It is an amenable number.

449043391449 is a deficient number, since it is larger than the sum of its proper divisors (217689293988).

449043391449 is an frugal number, since it uses more digits than its factorization.

449043391449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12154 (or 6077 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 54.

The spelling of 449043391449 in words is "four hundred forty-nine billion, forty-three million, three hundred ninety-one thousand, four hundred forty-nine".