4205957449 has 2 divisors, whose sum is σ = 4205957450. Its totient is φ = 4205957448.

The previous prime is 4205957417. The next prime is 4205957453. The reversal of 4205957449 is 9447595024.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3286958224 + 918999225 = 57332^2 + 30315^2 .

It is a cyclic number.

It is not a de Polignac number, because 4205957449 - 2⁵ = 4205957417 is a prime.

It is not a weakly prime, because it can be changed into another prime (4205957149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2102978724 + 2102978725.

It is an arithmetic number, because the mean of its divisors is an integer number (2102978725).

Almost surely, 2^4205957449 is an apocalyptic number.

It is an amenable number.

4205957449 is a deficient number, since it is larger than the sum of its proper divisors (1).

4205957449 is an equidigital number, since it uses as much as digits as its factorization.

4205957449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The square root of 4205957449 is about 64853.3534136825. The cubic root of 4205957449 is about 1614.1911363267.

The spelling of 4205957449 in words is "four billion, two hundred five million, nine hundred fifty-seven thousand, four hundred forty-nine".