448509940 has 48 divisors (see below), whose sum is σ = 981953280. Its totient is φ = 171866240.

The previous prime is 448509899. The next prime is 448509949. The reversal of 448509940 is 49905844.

It is a super-2 number, since 2×448509940² = 402322332557607200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448509949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73029 + ... + 78931.

It is an arithmetic number, because the mean of its divisors is an integer number (20457360).

Almost surely, 2^448509940 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 448509940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (490976640).

448509940 is an abundant number, since it is smaller than the sum of its proper divisors (533443340).

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

448509940 is a wasteful number, since it uses less digits than its factorization.

448509940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6072 (or 6070 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 448509940 is about 21178.0532627529. The cubic root of 448509940 is about 765.4626844914.

The spelling of 448509940 in words is "four hundred forty-eight million, five hundred nine thousand, nine hundred forty".