2491344 has 80 divisors (see below), whose sum is σ = 7340800. Its totient is φ = 808704.

The previous prime is 2491343. The next prime is 2491351. The reversal of 2491344 is 4431942.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491343) 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, 31497 + ... + 31575.

It is an arithmetic number, because the mean of its divisors is an integer number (91760).

2^2491344 is an apocalyptic number.

2491344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2491344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3670400).

2491344 is an abundant number, since it is smaller than the sum of its proper divisors (4849456).

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

2491344 is a wasteful number, since it uses less digits than its factorization.

2491344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 157 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 2491344 is about 1578.3991890520. The cubic root of 2491344 is about 135.5640597052.

The spelling of 2491344 in words is "two million, four hundred ninety-one thousand, three hundred forty-four".