449556538 has 4 divisors (see below), whose sum is σ = 674334810. Its totient is φ = 224778268.

The previous prime is 449556467. The next prime is 449556539. The reversal of 449556538 is 835655944.

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

It can be written as a sum of positive squares in only one way, i.e., 237067609 + 212488929 = 15397^2 + 14577^2 .

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 junction number, because it is equal to n+sod(n) for n = 449556491 and 449556500.

It is not an unprimeable number, because it can be changed into a prime (449556539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112389133 + ... + 112389136.

Almost surely, 2^449556538 is an apocalyptic number.

449556538 is a deficient number, since it is larger than the sum of its proper divisors (224778272).

449556538 is a wasteful number, since it uses less digits than its factorization.

449556538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224778271.

The product of its digits is 2592000, while the sum is 49.

The square root of 449556538 is about 21202.7483595877. The cubic root of 449556538 is about 766.0576243897.

The spelling of 449556538 in words is "four hundred forty-nine million, five hundred fifty-six thousand, five hundred thirty-eight".