2443749 has 32 divisors (see below), whose sum is σ = 4147200. Its totient is φ = 1243200.

The previous prime is 2443747. The next prime is 2443751. The reversal of 2443749 is 9473442.

2443749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2443747) and next prime (2443751).

It is not a de Polignac number, because 2443749 - 2¹ = 2443747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a plaindrome in base 5.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2443741) 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 31 ways as a sum of consecutive naturals, for example, 16327 + ... + 16475.

It is an arithmetic number, because the mean of its divisors is an integer number (129600).

2^2443749 is an apocalyptic number.

It is an amenable number.

2443749 is a deficient number, since it is larger than the sum of its proper divisors (1703451).

2443749 is a wasteful number, since it uses less digits than its factorization.

2443749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241.

The product of its digits is 24192, while the sum is 33.

The square root of 2443749 is about 1563.2495002398. The cubic root of 2443749 is about 134.6952246670.

It can be divided in two parts, 244 and 3749, that added together give a palindrome (3993).

The spelling of 2443749 in words is "two million, four hundred forty-three thousand, seven hundred forty-nine".