2449903 has 4 divisors (see below), whose sum is σ = 2477520. Its totient is φ = 2422288.

The previous prime is 2449901. The next prime is 2449907. The reversal of 2449903 is 3099442.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2449903 - 2¹ = 2449901 is a prime.

It is a Duffinian number.

2449903 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2449901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13675 + ... + 13852.

It is an arithmetic number, because the mean of its divisors is an integer number (619380).

2^2449903 is an apocalyptic number.

2449903 is a deficient number, since it is larger than the sum of its proper divisors (27617).

2449903 is an equidigital number, since it uses as much as digits as its factorization.

2449903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27616.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 2449903 is about 1565.2165984298. The cubic root of 2449903 is about 134.8081958405.

The spelling of 2449903 in words is "two million, four hundred forty-nine thousand, nine hundred three".