449087320 has 64 divisors (see below), whose sum is σ = 1107367200. Its totient is φ = 162554880.

The previous prime is 449087311. The next prime is 449087329. The reversal of 449087320 is 23780944.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (449087311) and next prime (449087329).

It is a self number, because there is not a number n which added to its sum of digits gives 449087320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449087329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98532 + ... + 102988.

Almost surely, 2^449087320 is an apocalyptic number.

449087320 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 449087320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (553683600).

449087320 is an abundant number, since it is smaller than the sum of its proper divisors (658279880).

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

449087320 is a wasteful number, since it uses less digits than its factorization.

449087320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4708 (or 4704 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 449087320 is about 21191.6804430418. The cubic root of 449087320 is about 765.7910111647.

The spelling of 449087320 in words is "four hundred forty-nine million, eighty-seven thousand, three hundred twenty".