2003530 has 32 divisors (see below), whose sum is σ = 3898368. Its totient is φ = 739200.

The previous prime is 2003509. The next prime is 2003557. The reversal of 2003530 is 353002.

It is a self number, because there is not a number n which added to its sum of digits gives 2003530.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6990 + ... + 7270.

It is an arithmetic number, because the mean of its divisors is an integer number (121824).

2^2003530 is an apocalyptic number.

2003530 is a deficient number, since it is larger than the sum of its proper divisors (1894838).

2003530 is a wasteful number, since it uses less digits than its factorization.

2003530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342.

The product of its (nonzero) digits is 90, while the sum is 13.

The square root of 2003530 is about 1415.4610556282. The cubic root of 2003530 is about 126.0661867769.

Adding to 2003530 its reverse (353002), we get a palindrome (2356532).

The spelling of 2003530 in words is "two million, three thousand, five hundred thirty".