2449643 has 4 divisors (see below), whose sum is σ = 2799600. Its totient is φ = 2099688.

The previous prime is 2449639. The next prime is 2449663. The reversal of 2449643 is 3469442.

2449643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3469442 = 2 ⋅1734721.

It is a cyclic number.

It is not a de Polignac number, because 2449643 - 2² = 2449639 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2449663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174968 + ... + 174981.

It is an arithmetic number, because the mean of its divisors is an integer number (699900).

2^2449643 is an apocalyptic number.

2449643 is a deficient number, since it is larger than the sum of its proper divisors (349957).

2449643 is an equidigital number, since it uses as much as digits as its factorization.

2449643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349956.

The product of its digits is 20736, while the sum is 32.

The square root of 2449643 is about 1565.1335406284. The cubic root of 2449643 is about 134.8034267577.

The spelling of 2449643 in words is "two million, four hundred forty-nine thousand, six hundred forty-three".