449618720 has 96 divisors (see below), whose sum is σ = 1173771648. Its totient is φ = 161886208.

The previous prime is 449618693. The next prime is 449618723. The reversal of 449618720 is 27816944.

It is not an unprimeable number, because it can be changed into a prime (449618723) 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, 58967 + ... + 66153.

It is an arithmetic number, because the mean of its divisors is an integer number (12226788).

Almost surely, 2^449618720 is an apocalyptic number.

449618720 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 449618720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (586885824).

449618720 is an abundant number, since it is smaller than the sum of its proper divisors (724152928).

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

449618720 is a wasteful number, since it uses less digits than its factorization.

449618720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7242 (or 7234 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 449618720 is about 21204.2146753894. The cubic root of 449618720 is about 766.0929427498.

The spelling of 449618720 in words is "four hundred forty-nine million, six hundred eighteen thousand, seven hundred twenty".