448353918 has 24 divisors (see below), whose sum is σ = 977257008. Its totient is φ = 148555392.

The previous prime is 448353911. The next prime is 448353923. The reversal of 448353918 is 819353844.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448353911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71571 + ... + 77582.

It is an arithmetic number, because the mean of its divisors is an integer number (40719042).

Almost surely, 2^448353918 is an apocalyptic number.

448353918 is an abundant number, since it is smaller than the sum of its proper divisors (528903090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

448353918 is a wasteful number, since it uses less digits than its factorization.

448353918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149328 (or 149325 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 448353918 is about 21174.3693648713. The cubic root of 448353918 is about 765.3739143516.

The spelling of 448353918 in words is "four hundred forty-eight million, three hundred fifty-three thousand, nine hundred eighteen".