449427520 has 112 divisors (see below), whose sum is σ = 1135319040. Its totient is φ = 168984576.

The previous prime is 449427509. The next prime is 449427523. The reversal of 449427520 is 25724944.

It is a self number, because there is not a number n which added to its sum of digits gives 449427520.

It is not an unprimeable number, because it can be changed into a prime (449427523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1173249 + ... + 1173631.

Almost surely, 2^449427520 is an apocalyptic number.

449427520 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 449427520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (567659520).

449427520 is an abundant number, since it is smaller than the sum of its proper divisors (685891520).

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

449427520 is a wasteful number, since it uses less digits than its factorization.

449427520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 449427520 is about 21199.7056583340. The cubic root of 449427520 is about 765.9843338833.

The spelling of 449427520 in words is "four hundred forty-nine million, four hundred twenty-seven thousand, five hundred twenty".