449322198 has 64 divisors (see below), whose sum is σ = 1001246400. Its totient is φ = 133539840.

The previous prime is 449322197. The next prime is 449322221. The reversal of 449322198 is 891223944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449322197) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 347938 + ... + 349226.

It is an arithmetic number, because the mean of its divisors is an integer number (15644475).

Almost surely, 2^449322198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449322198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500623200).

449322198 is an abundant number, since it is smaller than the sum of its proper divisors (551924202).

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

449322198 is a wasteful number, since it uses less digits than its factorization.

449322198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457.

The product of its digits is 124416, while the sum is 42.

The square root of 449322198 is about 21197.2214688624. The cubic root of 449322198 is about 765.9244938266.

The spelling of 449322198 in words is "four hundred forty-nine million, three hundred twenty-two thousand, one hundred ninety-eight".