1300440345 has 16 divisors (see below), whose sum is σ = 2081661120. Its totient is φ = 693249344.

The previous prime is 1300440343. The next prime is 1300440367. The reversal of 1300440345 is 5430440031.

It is a cyclic number.

It is not a de Polignac number, because 1300440345 - 2¹ = 1300440343 is a prime.

It is a super-2 number, since 2×1300440345² = 3382290181807438050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1300440343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15862 + ... + 53408.

It is an arithmetic number, because the mean of its divisors is an integer number (130103820).

Almost surely, 2^1300440345 is an apocalyptic number.

1300440345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1300440345 is a deficient number, since it is larger than the sum of its proper divisors (781220775).

1300440345 is a wasteful number, since it uses less digits than its factorization.

1300440345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39864.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1300440345 is about 36061.6187240673. The cubic root of 1300440345 is about 1091.5160972012.

Adding to 1300440345 its reverse (5430440031), we get a palindrome (6730880376).

The spelling of 1300440345 in words is "one billion, three hundred million, four hundred forty thousand, three hundred forty-five".