449472912 has 80 divisors (see below), whose sum is σ = 1331164800. Its totient is φ = 128019456.

The previous prime is 449472901. The next prime is 449472931. The reversal of 449472912 is 219274944.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115348 + ... + 119180.

It is an arithmetic number, because the mean of its divisors is an integer number (16639560).

Almost surely, 2^449472912 is an apocalyptic number.

449472912 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 449472912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (665582400).

449472912 is an abundant number, since it is smaller than the sum of its proper divisors (881691888).

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

449472912 is a wasteful number, since it uses less digits than its factorization.

449472912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4200 (or 4194 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 449472912 is about 21200.7762122051. The cubic root of 449472912 is about 766.0101210524.

The spelling of 449472912 in words is "four hundred forty-nine million, four hundred seventy-two thousand, nine hundred twelve".