2499968 has 16 divisors (see below), whose sum is σ = 4980660. Its totient is φ = 1249920.

The previous prime is 2499967. The next prime is 2499983. The reversal of 2499968 is 8699942.

It is a tau number, because it is divible by the number of its divisors (16).

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 (2499967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9638 + ... + 9893.

2^2499968 is an apocalyptic number.

It is an amenable number.

2499968 is a deficient number, since it is larger than the sum of its proper divisors (2480692).

2499968 is an equidigital number, since it uses as much as digits as its factorization.

2499968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19545 (or 19533 counting only the distinct ones).

The product of its digits is 279936, while the sum is 47.

The square root of 2499968 is about 1581.1287107633. The cubic root of 2499968 is about 135.7203017515.

The spelling of 2499968 in words is "two million, four hundred ninety-nine thousand, nine hundred sixty-eight".