2491248 has 80 divisors (see below), whose sum is σ = 7070976. Its totient is φ = 752640.

The previous prime is 2491243. The next prime is 2491259. The reversal of 2491248 is 8421942.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35053 + ... + 35123.

2^2491248 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 2491248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3535488).

2491248 is an abundant number, since it is smaller than the sum of its proper divisors (4579728).

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

2491248 is a wasteful number, since it uses less digits than its factorization.

2491248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 136 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 2491248 is about 1578.3687782011. The cubic root of 2491248 is about 135.5623184339.

The spelling of 2491248 in words is "two million, four hundred ninety-one thousand, two hundred forty-eight".