2499456 has 64 divisors (see below), whose sum is σ = 6952320. Its totient is φ = 794112.

The previous prime is 2499449. The next prime is 2499457. The reversal of 2499456 is 6549942.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2499457) 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 in 7 ways as a sum of consecutive naturals, for example, 8691 + ... + 8973.

It is an arithmetic number, because the mean of its divisors is an integer number (108630).

2^2499456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2499456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3476160).

2499456 is an abundant number, since it is smaller than the sum of its proper divisors (4452864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2499456 is a wasteful number, since it uses less digits than its factorization.

2499456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 311 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 2499456 is about 1580.9667928201. The cubic root of 2499456 is about 135.7110358277.

The spelling of 2499456 in words is "two million, four hundred ninety-nine thousand, four hundred fifty-six".