449521443 has 36 divisors (see below), whose sum is σ = 764480808. Its totient is φ = 253753920.

The previous prime is 449521439. The next prime is 449521451. The reversal of 449521443 is 344125944.

It is not a de Polignac number, because 449521443 - 2² = 449521439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 449521398 and 449521407.

It is not an unprimeable number, because it can be changed into a prime (449521043) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 30463 + ... + 42743.

It is an arithmetic number, because the mean of its divisors is an integer number (21235578).

Almost surely, 2^449521443 is an apocalyptic number.

449521443 is a deficient number, since it is larger than the sum of its proper divisors (314959365).

449521443 is a wasteful number, since it uses less digits than its factorization.

449521443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12384 (or 12374 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 449521443 is about 21201.9207384614. The cubic root of 449521443 is about 766.0376895652.

The spelling of 449521443 in words is "four hundred forty-nine million, five hundred twenty-one thousand, four hundred forty-three".