449478434 has 4 divisors (see below), whose sum is σ = 674217654. Its totient is φ = 224739216.

The previous prime is 449478413. The next prime is 449478451. The reversal of 449478434 is 434874944.

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., 411075625 + 38402809 = 20275^2 + 6197^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112369607 + ... + 112369610.

Almost surely, 2^449478434 is an apocalyptic number.

449478434 is a deficient number, since it is larger than the sum of its proper divisors (224739220).

449478434 is a wasteful number, since it uses less digits than its factorization.

449478434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224739219.

The product of its digits is 1548288, while the sum is 47.

The square root of 449478434 is about 21200.9064428859. The cubic root of 449478434 is about 766.0132579789.

It can be divided in two parts, 4494 and 78434, that added together give a palindrome (82928).

The spelling of 449478434 in words is "four hundred forty-nine million, four hundred seventy-eight thousand, four hundred thirty-four".