2499424 has 24 divisors (see below), whose sum is σ = 5056128. Its totient is φ = 1215360.

The previous prime is 2499421. The next prime is 2499439. The reversal of 2499424 is 4249942.

It is a self number, because there is not a number n which added to its sum of digits gives 2499424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2499421) 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, 129 + ... + 2239.

It is an arithmetic number, because the mean of its divisors is an integer number (210672).

2^2499424 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 2499424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2528064).

2499424 is an abundant number, since it is smaller than the sum of its proper divisors (2556704).

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

2499424 is a wasteful number, since it uses less digits than its factorization.

2499424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158 (or 2150 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 2499424 is about 1580.9566723981. The cubic root of 2499424 is about 135.7104566655.

The spelling of 2499424 in words is "two million, four hundred ninety-nine thousand, four hundred twenty-four".