449770549 has 2 divisors, whose sum is σ = 449770550. Its totient is φ = 449770548.

The previous prime is 449770493. The next prime is 449770571. The reversal of 449770549 is 945077944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 296184100 + 153586449 = 17210^2 + 12393^2 .

It is a cyclic number.

It is not a de Polignac number, because 449770549 - 2¹⁵ = 449737781 is a prime.

It is a super-2 number, since 2×449770549² = 404587093495522802, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449770249) 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, 224885274 + 224885275.

It is an arithmetic number, because the mean of its divisors is an integer number (224885275).

Almost surely, 2^449770549 is an apocalyptic number.

It is an amenable number.

449770549 is a deficient number, since it is larger than the sum of its proper divisors (1).

449770549 is an equidigital number, since it uses as much as digits as its factorization.

449770549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The square root of 449770549 is about 21207.7945340858. The cubic root of 449770549 is about 766.1791654611.

The spelling of 449770549 in words is "four hundred forty-nine million, seven hundred seventy thousand, five hundred forty-nine".