4490309 has 2 divisors, whose sum is σ = 4490310. Its totient is φ = 4490308.

The previous prime is 4490293. The next prime is 4490347. The reversal of 4490309 is 9030944.

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., 4318084 + 172225 = 2078^2 + 415^2 .

It is a cyclic number.

It is not a de Polignac number, because 4490309 - 2⁴ = 4490293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4490399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2245154 + 2245155.

It is an arithmetic number, because the mean of its divisors is an integer number (2245155).

Almost surely, 2^4490309 is an apocalyptic number.

It is an amenable number.

4490309 is a deficient number, since it is larger than the sum of its proper divisors (1).

4490309 is an equidigital number, since it uses as much as digits as its factorization.

4490309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 4490309 is about 2119.0349218453. The cubic root of 4490309 is about 164.9777625373.

The spelling of 4490309 in words is "four million, four hundred ninety thousand, three hundred nine".