448278378 has 16 divisors (see below), whose sum is σ = 897798720. Its totient is φ = 149219136.

The previous prime is 448278373. The next prime is 448278403. The reversal of 448278378 is 873872844.

It is a self number, because there is not a number n which added to its sum of digits gives 448278378.

It is not an unprimeable number, because it can be changed into a prime (448278371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47023 + ... + 55746.

It is an arithmetic number, because the mean of its divisors is an integer number (56112420).

Almost surely, 2^448278378 is an apocalyptic number.

448278378 is an abundant number, since it is smaller than the sum of its proper divisors (449520342).

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

448278378 is a wasteful number, since it uses less digits than its factorization.

448278378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103501.

The product of its digits is 2408448, while the sum is 51.

The square root of 448278378 is about 21172.5855294057. The cubic root of 448278378 is about 765.3309277805.

The spelling of 448278378 in words is "four hundred forty-eight million, two hundred seventy-eight thousand, three hundred seventy-eight".