10449209 has 4 divisors (see below), whose sum is σ = 10486416. Its totient is φ = 10412004.

The previous prime is 10449191. The next prime is 10449233. The reversal of 10449209 is 90294401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10449209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10449809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18179 + ... + 18744.

It is an arithmetic number, because the mean of its divisors is an integer number (2621604).

Almost surely, 2^10449209 is an apocalyptic number.

It is an amenable number.

10449209 is a deficient number, since it is larger than the sum of its proper divisors (37207).

10449209 is an equidigital number, since it uses as much as digits as its factorization.

10449209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37206.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 10449209 is about 3232.5236271372. The cubic root of 10449209 is about 218.6223065357.

The spelling of 10449209 in words is "ten million, four hundred forty-nine thousand, two hundred nine".