2499499 has 4 divisors (see below), whose sum is σ = 2580160. Its totient is φ = 2418840.

The previous prime is 2499463. The next prime is 2499509. The reversal of 2499499 is 9949942.

2499499 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2499499 is a prime.

It is an Ulam number.

It is a Duffinian number.

2499499 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2499439) 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, 40284 + ... + 40345.

It is an arithmetic number, because the mean of its divisors is an integer number (645040).

2^2499499 is an apocalyptic number.

2499499 is a deficient number, since it is larger than the sum of its proper divisors (80661).

2499499 is an equidigital number, since it uses as much as digits as its factorization.

2499499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80660.

The product of its digits is 209952, while the sum is 46.

The square root of 2499499 is about 1580.9803920353. The cubic root of 2499499 is about 135.7118140692.

The spelling of 2499499 in words is "two million, four hundred ninety-nine thousand, four hundred ninety-nine".