449893273 has 2 divisors, whose sum is σ = 449893274. Its totient is φ = 449893272.

The previous prime is 449893243. The next prime is 449893313. The reversal of 449893273 is 372398944.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 368947264 + 80946009 = 19208^2 + 8997^2 .

It is a cyclic number.

It is not a de Polignac number, because 449893273 - 2⁹ = 449892761 is a prime.

It is not a weakly prime, because it can be changed into another prime (449893243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224946636 + 224946637.

It is an arithmetic number, because the mean of its divisors is an integer number (224946637).

Almost surely, 2^449893273 is an apocalyptic number.

It is an amenable number.

449893273 is a deficient number, since it is larger than the sum of its proper divisors (1).

449893273 is an equidigital number, since it uses as much as digits as its factorization.

449893273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 49.

The square root of 449893273 is about 21210.6877069085. The cubic root of 449893273 is about 766.2488454503.

The spelling of 449893273 in words is "four hundred forty-nine million, eight hundred ninety-three thousand, two hundred seventy-three".