1305130304 has 56 divisors (see below), whose sum is σ = 2686190208. Its totient is φ = 628646400.

The previous prime is 1305130291. The next prime is 1305130381. The reversal of 1305130304 is 4030315031.

It is a happy number.

It is a super-2 number, since 2×1305130304² = 3406730220838264832, which contains 22 as substring.

It is a congruent number.

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, 241229 + ... + 246579.

Almost surely, 2^1305130304 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 1305130304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1343095104).

1305130304 is an abundant number, since it is smaller than the sum of its proper divisors (1381059904).

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

1305130304 is a wasteful number, since it uses less digits than its factorization.

1305130304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5503 (or 5493 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 1305130304 is about 36126.5872177265. The cubic root of 1305130304 is about 1092.8266850794.

Adding to 1305130304 its reverse (4030315031), we get a palindrome (5335445335).

The spelling of 1305130304 in words is "one billion, three hundred five million, one hundred thirty thousand, three hundred four".