2740224 has 52 divisors (see below), whose sum is σ = 7339136. Its totient is φ = 909312.

The previous prime is 2740223. The next prime is 2740249. The reversal of 2740224 is 4220472.

It is a self number, because there is not a number n which added to its sum of digits gives 2740224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2740223) 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, 12177 + ... + 12399.

2^2740224 is an apocalyptic number.

2740224 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 2740224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3669568).

2740224 is an abundant number, since it is smaller than the sum of its proper divisors (4598912).

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

2740224 is an equidigital number, since it uses as much as digits as its factorization.

2740224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 2740224 is about 1655.3621960163. The cubic root of 2740224 is about 139.9357528339.

Adding to 2740224 its reverse (4220472), we get a palindrome (6960696).

The spelling of 2740224 in words is "two million, seven hundred forty thousand, two hundred twenty-four".