1300505420 has 36 divisors (see below), whose sum is σ = 2764655040. Its totient is φ = 513880224.

The previous prime is 1300505419. The next prime is 1300505429. The reversal of 1300505420 is 245050031.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1300505392 and 1300505401.

It is not an unprimeable number, because it can be changed into a prime (1300505429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133061 + ... + 142499.

Almost surely, 2^1300505420 is an apocalyptic number.

1300505420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1300505420 is an abundant number, since it is smaller than the sum of its proper divisors (1464149620).

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

1300505420 is an equidigital number, since it uses as much as digits as its factorization.

1300505420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9614 (or 9529 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 1300505420 is about 36062.5209878622. The cubic root of 1300505420 is about 1091.5343036561.

Adding to 1300505420 its reverse (245050031), we get a palindrome (1545555451).

The spelling of 1300505420 in words is "one billion, three hundred million, five hundred five thousand, four hundred twenty".