449855280 has 360 divisors, whose sum is σ = 1806071904. Its totient is φ = 99993600.

The previous prime is 449855243. The next prime is 449855299. The reversal of 449855280 is 82558944.

449855280 is a `hidden beast` number, since 4 + 4 + 98 + 552 + 8 + 0 = 666.

449855280 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1446325 + ... + 1446635.

Almost surely, 2^449855280 is an apocalyptic number.

449855280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449855280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (903035952).

449855280 is an abundant number, since it is smaller than the sum of its proper divisors (1356216624).

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

449855280 is a wasteful number, since it uses less digits than its factorization.

449855280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The square root of 449855280 is about 21209.7920781888. The cubic root of 449855280 is about 766.2272752145.

The spelling of 449855280 in words is "four hundred forty-nine million, eight hundred fifty-five thousand, two hundred eighty".