449642533 has 4 divisors (see below), whose sum is σ = 449835660. Its totient is φ = 449449408.

The previous prime is 449642521. The next prime is 449642563. The reversal of 449642533 is 335246944.

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

It can be written as a sum of positive squares in 2 ways, for example, as 172186884 + 277455649 = 13122^2 + 16657^2 .

It is a cyclic number.

It is not a de Polignac number, because 449642533 - 2⁹ = 449642021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449642563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93028 + ... + 97741.

It is an arithmetic number, because the mean of its divisors is an integer number (112458915).

Almost surely, 2^449642533 is an apocalyptic number.

It is an amenable number.

449642533 is a deficient number, since it is larger than the sum of its proper divisors (193127).

449642533 is a wasteful number, since it uses less digits than its factorization.

449642533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193126.

The product of its digits is 311040, while the sum is 40.

The square root of 449642533 is about 21204.7761836809. The cubic root of 449642533 is about 766.1064672824.

The spelling of 449642533 in words is "four hundred forty-nine million, six hundred forty-two thousand, five hundred thirty-three".