449328432 has 120 divisors (see below), whose sum is σ = 1369297776. Its totient is φ = 126572544.

The previous prime is 449328427. The next prime is 449328433. The reversal of 449328432 is 234823944.

It is a happy number.

It is a super-3 number, since 3×449328432³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (449328433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170388 + ... + 173004.

Almost surely, 2^449328432 is an apocalyptic number.

449328432 is a gapful number since it is divisible by the number (42) 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 449328432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (684648888).

449328432 is an abundant number, since it is smaller than the sum of its proper divisors (919969344).

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

449328432 is a wasteful number, since it uses less digits than its factorization.

449328432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2715 (or 2702 counting only the distinct ones).

The product of its digits is 165888, while the sum is 39.

The square root of 449328432 is about 21197.3685159267. The cubic root of 449328432 is about 765.9280360147.

The spelling of 449328432 in words is "four hundred forty-nine million, three hundred twenty-eight thousand, four hundred thirty-two".