449740493 has 2 divisors, whose sum is σ = 449740494. Its totient is φ = 449740492.

The previous prime is 449740471. The next prime is 449740523. The reversal of 449740493 is 394047944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 346778884 + 102961609 = 18622^2 + 10147^2 .

It is a cyclic number.

It is not a de Polignac number, because 449740493 - 2⁶ = 449740429 is a prime.

It is a super-2 number, since 2×449740493² = 404533022087766098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449740453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224870246 + 224870247.

It is an arithmetic number, because the mean of its divisors is an integer number (224870247).

Almost surely, 2^449740493 is an apocalyptic number.

It is an amenable number.

449740493 is a deficient number, since it is larger than the sum of its proper divisors (1).

449740493 is an equidigital number, since it uses as much as digits as its factorization.

449740493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 449740493 is about 21207.0859148540. The cubic root of 449740493 is about 766.1620983928.

The spelling of 449740493 in words is "four hundred forty-nine million, seven hundred forty thousand, four hundred ninety-three".