449534320 has 40 divisors (see below), whose sum is σ = 1067413824. Its totient is φ = 175986432.

The previous prime is 449534311. The next prime is 449534321. The reversal of 449534320 is 23435944.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×449534320² = 404162209715724800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449534321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56019 + ... + 63538.

Almost surely, 2^449534320 is an apocalyptic number.

449534320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

449534320 is an abundant number, since it is smaller than the sum of its proper divisors (617879504).

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

449534320 is a wasteful number, since it uses less digits than its factorization.

449534320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119617 (or 119611 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 449534320 is about 21202.2244116036. The cubic root of 449534320 is about 766.0450041389.

The spelling of 449534320 in words is "four hundred forty-nine million, five hundred thirty-four thousand, three hundred twenty".