830144449 has 4 divisors (see below), whose sum is σ = 830830036. Its totient is φ = 829458864.

The previous prime is 830144423. The next prime is 830144453. The reversal of 830144449 is 944441038.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 316306225 + 513838224 = 17785^2 + 22668^2 .

It is a cyclic number.

It is not a de Polignac number, because 830144449 - 2²⁹ = 293273537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (830144489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340974 + ... + 343399.

It is an arithmetic number, because the mean of its divisors is an integer number (207707509).

Almost surely, 2^830144449 is an apocalyptic number.

It is an amenable number.

830144449 is a deficient number, since it is larger than the sum of its proper divisors (685587).

830144449 is a wasteful number, since it uses less digits than its factorization.

830144449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685586.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 830144449 is about 28812.2274217041. The cubic root of 830144449 is about 939.8341524971.

The spelling of 830144449 in words is "eight hundred thirty million, one hundred forty-four thousand, four hundred forty-nine".