2730224 has 40 divisors (see below), whose sum is σ = 6368640. Its totient is φ = 1107648.

The previous prime is 2730197. The next prime is 2730229. The reversal of 2730224 is 4220372.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2730196 and 2730205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2730229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1487 + ... + 2769.

It is an arithmetic number, because the mean of its divisors is an integer number (159216).

2^2730224 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 2730224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3184320).

2730224 is an abundant number, since it is smaller than the sum of its proper divisors (3638416).

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

2730224 is a wasteful number, since it uses less digits than its factorization.

2730224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317 (or 1311 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 2730224 is about 1652.3389482791. The cubic root of 2730224 is about 139.7653211185.

Adding to 2730224 its reverse (4220372), we get a palindrome (6950596).

The spelling of 2730224 in words is "two million, seven hundred thirty thousand, two hundred twenty-four".