449320032 has 72 divisors (see below), whose sum is σ = 1460296656. Its totient is φ = 128376576.

The previous prime is 449320009. The next prime is 449320033. The reversal of 449320032 is 230023944.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 449319978 and 449320005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449320033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109423 + ... + 113454.

It is an arithmetic number, because the mean of its divisors is an integer number (20281898).

Almost surely, 2^449320032 is an apocalyptic number.

449320032 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

449320032 is an abundant number, since it is smaller than the sum of its proper divisors (1010976624).

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

449320032 is a wasteful number, since it uses less digits than its factorization.

449320032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222900 (or 222889 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 449320032 is about 21197.1703771989. The cubic root of 449320032 is about 765.9232630875.

Adding to 449320032 its reverse (230023944), we get a palindrome (679343976).

The spelling of 449320032 in words is "four hundred forty-nine million, three hundred twenty thousand, thirty-two".