449003520 has 480 divisors, whose sum is σ = 1887379200. Its totient is φ = 99090432.

The previous prime is 449003449. The next prime is 449003521. The reversal of 449003520 is 25300944.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449003521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15482866 + ... + 15482894.

It is an arithmetic number, because the mean of its divisors is an integer number (3932040).

Almost surely, 2^449003520 is an apocalyptic number.

449003520 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 449003520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (943689600).

449003520 is an abundant number, since it is smaller than the sum of its proper divisors (1438375680).

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

449003520 is an equidigital number, since it uses as much as digits as its factorization.

449003520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 46 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 449003520 is about 21189.7031597897. The cubic root of 449003520 is about 765.7433758268.

The spelling of 449003520 in words is "four hundred forty-nine million, three thousand, five hundred twenty".