1305430004 has 12 divisors (see below), whose sum is σ = 2346246084. Its totient is φ = 635073984.

The previous prime is 1305430001. The next prime is 1305430013. The reversal of 1305430004 is 4000345031.

It can be written as a sum of positive squares in 2 ways, for example, as 1253301604 + 52128400 = 35402^2 + 7220^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305430001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4410089 + ... + 4410384.

It is an arithmetic number, because the mean of its divisors is an integer number (195520507).

Almost surely, 2^1305430004 is an apocalyptic number.

It is an amenable number.

1305430004 is a deficient number, since it is larger than the sum of its proper divisors (1040816080).

1305430004 is a wasteful number, since it uses less digits than its factorization.

1305430004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8820514 (or 8820512 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1305430004 is about 36130.7348942697. The cubic root of 1305430004 is about 1092.9103280919.

Adding to 1305430004 its reverse (4000345031), we get a palindrome (5305775035).

The spelling of 1305430004 in words is "one billion, three hundred five million, four hundred thirty thousand, four".