449152709 has 2 divisors, whose sum is σ = 449152710. Its totient is φ = 449152708.

The previous prime is 449152681. The next prime is 449152747. The reversal of 449152709 is 907251944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300849025 + 148303684 = 17345^2 + 12178^2 .

It is a cyclic number.

It is not a de Polignac number, because 449152709 - 2¹² = 449148613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449172709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224576354 + 224576355.

It is an arithmetic number, because the mean of its divisors is an integer number (224576355).

Almost surely, 2^449152709 is an apocalyptic number.

It is an amenable number.

449152709 is a deficient number, since it is larger than the sum of its proper divisors (1).

449152709 is an equidigital number, since it uses as much as digits as its factorization.

449152709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 449152709 is about 21193.2231857261. The cubic root of 449152709 is about 765.8281768235.

The spelling of 449152709 in words is "four hundred forty-nine million, one hundred fifty-two thousand, seven hundred nine".