450443320 has 32 divisors (see below), whose sum is σ = 1014184800. Its totient is φ = 180055168.

The previous prime is 450443311. The next prime is 450443321. The reversal of 450443320 is 23344054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450443321) 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, 77061 + ... + 82699.

It is an arithmetic number, because the mean of its divisors is an integer number (31693275).

Almost surely, 2^450443320 is an apocalyptic number.

450443320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

450443320 is an abundant number, since it is smaller than the sum of its proper divisors (563741480).

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

450443320 is a wasteful number, since it uses less digits than its factorization.

450443320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7647 (or 7643 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 450443320 is about 21223.6500159610. The cubic root of 450443320 is about 766.5609944672.

Adding to 450443320 its reverse (23344054), we get a palindrome (473787374).

The spelling of 450443320 in words is "four hundred fifty million, four hundred forty-three thousand, three hundred twenty".