448509280 has 24 divisors (see below), whose sum is σ = 1059603552. Its totient is φ = 179403648.

The previous prime is 448509241. The next prime is 448509289. The reversal of 448509280 is 82905844.

It is a super-2 number, since 2×448509280² = 402321148492236800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448509289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1401432 + ... + 1401751.

It is an arithmetic number, because the mean of its divisors is an integer number (44150148).

Almost surely, 2^448509280 is an apocalyptic number.

448509280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

448509280 is an abundant number, since it is smaller than the sum of its proper divisors (611094272).

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

448509280 is a wasteful number, since it uses less digits than its factorization.

448509280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2803198 (or 2803190 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 448509280 is about 21178.0376805784. The cubic root of 448509280 is about 765.4623090217.

The spelling of 448509280 in words is "four hundred forty-eight million, five hundred nine thousand, two hundred eighty".