449936749 has 2 divisors, whose sum is σ = 449936750. Its totient is φ = 449936748.

The previous prime is 449936737. The next prime is 449936779. The reversal of 449936749 is 947639944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 442807849 + 7128900 = 21043^2 + 2670^2 .

It is a cyclic number.

It is not a de Polignac number, because 449936749 - 2⁵ = 449936717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 449936749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449936779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224968374 + 224968375.

It is an arithmetic number, because the mean of its divisors is an integer number (224968375).

Almost surely, 2^449936749 is an apocalyptic number.

It is an amenable number.

449936749 is a deficient number, since it is larger than the sum of its proper divisors (1).

449936749 is an equidigital number, since it uses as much as digits as its factorization.

449936749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 55.

The square root of 449936749 is about 21211.7125428382. The cubic root of 449936749 is about 766.2735271276.

The spelling of 449936749 in words is "four hundred forty-nine million, nine hundred thirty-six thousand, seven hundred forty-nine".