2449509 has 8 divisors (see below), whose sum is σ = 3280032. Its totient is φ = 1626000.

The previous prime is 2449493. The next prime is 2449519. The reversal of 2449509 is 9059442.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2449509 - 2⁴ = 2449493 is a prime.

It is an Ulam number.

It is a Curzon number.

2449509 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2449509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2449519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 874 + ... + 2379.

It is an arithmetic number, because the mean of its divisors is an integer number (410004).

2^2449509 is an apocalyptic number.

It is an amenable number.

2449509 is a deficient number, since it is larger than the sum of its proper divisors (830523).

2449509 is a wasteful number, since it uses less digits than its factorization.

2449509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3507.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 2449509 is about 1565.0907321941. The cubic root of 2449509 is about 134.8009687140.

The spelling of 2449509 in words is "two million, four hundred forty-nine thousand, five hundred nine".