2499944 has 16 divisors (see below), whose sum is σ = 4934400. Its totient is φ = 1184112.

The previous prime is 2499943. The next prime is 2499947. The reversal of 2499944 is 4499942.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (2499941) 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, 8072 + ... + 8375.

It is an arithmetic number, because the mean of its divisors is an integer number (308400).

2^2499944 is an apocalyptic number.

It is an amenable number.

2499944 is a deficient number, since it is larger than the sum of its proper divisors (2434456).

2499944 is a wasteful number, since it uses less digits than its factorization.

2499944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16472 (or 16468 counting only the distinct ones).

The product of its digits is 93312, while the sum is 41.

The square root of 2499944 is about 1581.1211212301. The cubic root of 2499944 is about 135.7198674396.

It can be divided in two parts, 2499 and 944, that added together give a palindrome (3443).

The spelling of 2499944 in words is "two million, four hundred ninety-nine thousand, nine hundred forty-four".