448493918 has 8 divisors (see below), whose sum is σ = 672873312. Its totient is φ = 224202816.

The previous prime is 448493887. The next prime is 448493921. The reversal of 448493918 is 819394844.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×448493918² = 402293588965981448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7430 + ... + 30857.

It is an arithmetic number, because the mean of its divisors is an integer number (84109164).

Almost surely, 2^448493918 is an apocalyptic number.

448493918 is a deficient number, since it is larger than the sum of its proper divisors (224379394).

448493918 is a wasteful number, since it uses less digits than its factorization.

448493918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44146.

The product of its digits is 995328, while the sum is 50.

The square root of 448493918 is about 21177.6749904233. The cubic root of 448493918 is about 765.4535695769.

The spelling of 448493918 in words is "four hundred forty-eight million, four hundred ninety-three thousand, nine hundred eighteen".