124404449 has 6 divisors (see below), whose sum is σ = 134710326. Its totient is φ = 114834720.

The previous prime is 124404439. The next prime is 124404451. The reversal of 124404449 is 944404421.

It can be written as a sum of positive squares in 3 ways, for example, as 483025 + 123921424 = 695^2 + 11132^2 .

It is not a de Polignac number, because 124404449 - 2²⁰ = 123355873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124404439) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 367892 + ... + 368229.

It is an arithmetic number, because the mean of its divisors is an integer number (22451721).

Almost surely, 2^124404449 is an apocalyptic number.

It is an amenable number.

124404449 is a deficient number, since it is larger than the sum of its proper divisors (10305877).

124404449 is an equidigital number, since it uses as much as digits as its factorization.

124404449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736147 (or 736134 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 124404449 is about 11153.6742376672. The cubic root of 124404449 is about 499.2046675634.

The spelling of 124404449 in words is "one hundred twenty-four million, four hundred four thousand, four hundred forty-nine".