2203530 has 48 divisors (see below), whose sum is σ = 6156000. Its totient is φ = 503328.

The previous prime is 2203519. The next prime is 2203541. The reversal of 2203530 is 353022.

2203530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2203519) and next prime (2203541).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 721 + ... + 2219.

It is an arithmetic number, because the mean of its divisors is an integer number (128250).

2^2203530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2203530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3078000).

2203530 is an abundant number, since it is smaller than the sum of its proper divisors (3952470).

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

2203530 is a wasteful number, since it uses less digits than its factorization.

2203530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523 (or 1516 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 2203530 is about 1484.4291832216. The cubic root of 2203530 is about 130.1286694496.

Adding to 2203530 its reverse (353022), we get a palindrome (2556552).

The spelling of 2203530 in words is "two million, two hundred three thousand, five hundred thirty".