1300806500 has 192 divisors, whose sum is σ = 3533537280. Its totient is φ = 408240000.

The previous prime is 1300806497. The next prime is 1300806503. The reversal of 1300806500 is 56080031.

It is an interprime number because it is at equal distance from previous prime (1300806497) and next prime (1300806503).

It is not an unprimeable number, because it can be changed into a prime (1300806503) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2061185 + ... + 2061815.

It is an arithmetic number, because the mean of its divisors is an integer number (18403840).

Almost surely, 2^1300806500 is an apocalyptic number.

1300806500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1300806500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1766768640).

1300806500 is an abundant number, since it is smaller than the sum of its proper divisors (2232730780).

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

1300806500 is a wasteful number, since it uses less digits than its factorization.

1300806500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1300806500 is about 36066.6951632666. The cubic root of 1300806500 is about 1091.6185308561.

Adding to 1300806500 its reverse (56080031), we get a palindrome (1356886531).

The spelling of 1300806500 in words is "one billion, three hundred million, eight hundred six thousand, five hundred".