448166738 has 4 divisors (see below), whose sum is σ = 672250110. Its totient is φ = 224083368.

The previous prime is 448166731. The next prime is 448166779. The reversal of 448166738 is 837661844.

It is a happy number.

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., 439028209 + 9138529 = 20953^2 + 3023^2 .

It is a junction number, because it is equal to n+sod(n) for n = 448166692 and 448166701.

It is not an unprimeable number, because it can be changed into a prime (448166731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112041683 + ... + 112041686.

Almost surely, 2^448166738 is an apocalyptic number.

448166738 is a deficient number, since it is larger than the sum of its proper divisors (224083372).

448166738 is a wasteful number, since it uses less digits than its factorization.

448166738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224083371.

The product of its digits is 774144, while the sum is 47.

The square root of 448166738 is about 21169.9489371137. The cubic root of 448166738 is about 765.2673894058.

The spelling of 448166738 in words is "four hundred forty-eight million, one hundred sixty-six thousand, seven hundred thirty-eight".