449856320 has 28 divisors (see below), whose sum is σ = 1071221124. Its totient is φ = 179942400.

The previous prime is 449856301. The next prime is 449856343. The reversal of 449856320 is 23658944.

It can be written as a sum of positive squares in 2 ways, for example, as 198697216 + 251159104 = 14096^2 + 15848^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702581 + ... + 703220.

Almost surely, 2^449856320 is an apocalyptic number.

449856320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

449856320 is an abundant number, since it is smaller than the sum of its proper divisors (621364804).

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

449856320 is a wasteful number, since it uses less digits than its factorization.

449856320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405818 (or 1405808 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 449856320 is about 21209.8165951523. The cubic root of 449856320 is about 766.2278656828.

The spelling of 449856320 in words is "four hundred forty-nine million, eight hundred fifty-six thousand, three hundred twenty".