2449943 has 4 divisors (see below), whose sum is σ = 2490168. Its totient is φ = 2409720.

The previous prime is 2449939. The next prime is 2449963. The reversal of 2449943 is 3499442.

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 2449943 - 2² = 2449939 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2449913) 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, 20021 + ... + 20142.

It is an arithmetic number, because the mean of its divisors is an integer number (622542).

2^2449943 is an apocalyptic number.

2449943 is a deficient number, since it is larger than the sum of its proper divisors (40225).

2449943 is an equidigital number, since it uses as much as digits as its factorization.

2449943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40224.

The product of its digits is 31104, while the sum is 35.

The square root of 2449943 is about 1565.2293761618. The cubic root of 2449943 is about 134.8089295156.

It can be divided in two parts, 24499 and 43, that added together give a palindrome (24542).

The spelling of 2449943 in words is "two million, four hundred forty-nine thousand, nine hundred forty-three".