449220338 has 18 divisors (see below), whose sum is σ = 784209933. Its totient is φ = 192433080.

The previous prime is 449220329. The next prime is 449220371. The reversal of 449220338 is 833022944.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 318872449 + 130347889 = 17857^2 + 11417^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=14987.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 449220298 and 449220307.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 208748 + ... + 210888.

Almost surely, 2^449220338 is an apocalyptic number.

449220338 is a deficient number, since it is larger than the sum of its proper divisors (334989595).

449220338 is an frugal number, since it uses more digits than its factorization.

449220338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4298 (or 2150 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 449220338 is about 21194.8186592856. The cubic root of 449220338 is about 765.8666118542.

Multiplying 449220338 by its product of nonzero digits (41472), we get a square (18630065857536 = 4316256²).

The spelling of 449220338 in words is "four hundred forty-nine million, two hundred twenty thousand, three hundred thirty-eight".