1300082720 has 24 divisors (see below), whose sum is σ = 3071445804. Its totient is φ = 520033024.

The previous prime is 1300082711. The next prime is 1300082723. The reversal of 1300082720 is 272800031.

It can be written as a sum of positive squares in 2 ways, for example, as 1296288016 + 3794704 = 36004^2 + 1948^2 .

It is not an unprimeable number, because it can be changed into a prime (1300082723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4062599 + ... + 4062918.

Almost surely, 2^1300082720 is an apocalyptic number.

1300082720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1300082720 is an abundant number, since it is smaller than the sum of its proper divisors (1771363084).

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

1300082720 is an equidigital number, since it uses as much as digits as its factorization.

1300082720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8125532 (or 8125524 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1300082720 is about 36056.6598563982. The cubic root of 1300082720 is about 1091.4160312930.

Adding to 1300082720 its reverse (272800031), we get a palindrome (1572882751).

The spelling of 1300082720 in words is "one billion, three hundred million, eighty-two thousand, seven hundred twenty".