448403616 has 72 divisors (see below), whose sum is σ = 1287153504. Its totient is φ = 148060800.

The previous prime is 448403609. The next prime is 448403671. The reversal of 448403616 is 616304844.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23541 + ... + 38091.

It is an arithmetic number, because the mean of its divisors is an integer number (17877132).

Almost surely, 2^448403616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 448403616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (643576752).

448403616 is an abundant number, since it is smaller than the sum of its proper divisors (838749888).

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

448403616 is a wasteful number, since it uses less digits than its factorization.

448403616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14674 (or 14663 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 448403616 is about 21175.5428737966. The cubic root of 448403616 is about 765.4021927168.

The spelling of 448403616 in words is "four hundred forty-eight million, four hundred three thousand, six hundred sixteen".