449558540 has 48 divisors (see below), whose sum is σ = 1001693952. Its totient is φ = 168892416.

The previous prime is 449558521. The next prime is 449558611. The reversal of 449558540 is 45855944.

It is a junction number, because it is equal to n+sod(n) for n = 449558491 and 449558500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208709 + ... + 210851.

It is an arithmetic number, because the mean of its divisors is an integer number (20868624).

Almost surely, 2^449558540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449558540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500846976).

449558540 is an abundant number, since it is smaller than the sum of its proper divisors (552135412).

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

449558540 is a wasteful number, since it uses less digits than its factorization.

449558540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786 (or 2784 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 44.

The square root of 449558540 is about 21202.7955703959. The cubic root of 449558540 is about 766.0587615437.

The spelling of 449558540 in words is "four hundred forty-nine million, five hundred fifty-eight thousand, five hundred forty".