2004340521530 has 16 divisors (see below), whose sum is σ = 3608785724040. Its totient is φ = 801520034112.

The previous prime is 2004340521479. The next prime is 2004340521569. The reversal of 2004340521530 is 351250434002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1121648328241 + 882692193289 = 1059079^2 + 939517^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2004340521493 and 2004340521502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26982869 + ... + 27057048.

Almost surely, 2^{2004340521530} is an apocalyptic number.

2004340521530 is a deficient number, since it is larger than the sum of its proper divisors (1604445202510).

2004340521530 is a wasteful number, since it uses less digits than its factorization.

2004340521530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54043633.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 2004340521530 its reverse (351250434002), we get a palindrome (2355590955532).

The spelling of 2004340521530 in words is "two trillion, four billion, three hundred forty million, five hundred twenty-one thousand, five hundred thirty".