448440040 has 32 divisors (see below), whose sum is σ = 1011307680. Its totient is φ = 178964032.

The previous prime is 448440023. The next prime is 448440053. The reversal of 448440040 is 40044844.

It is a junction number, because it is equal to n+sod(n) for n = 448439990 and 448440008.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5067 + ... + 30373.

It is an arithmetic number, because the mean of its divisors is an integer number (31603365).

Almost surely, 2^448440040 is an apocalyptic number.

448440040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

448440040 is an abundant number, since it is smaller than the sum of its proper divisors (562867640).

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

448440040 is a wasteful number, since it uses less digits than its factorization.

448440040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25761 (or 25757 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

The square root of 448440040 is about 21176.4029051206. The cubic root of 448440040 is about 765.4229167949.

Adding to 448440040 its reverse (40044844), we get a palindrome (488484884).

The spelling of 448440040 in words is "four hundred forty-eight million, four hundred forty thousand, forty".