1340310530 has 32 divisors (see below), whose sum is σ = 2600564400. Its totient is φ = 494422272.

The previous prime is 1340310511. The next prime is 1340310557. The reversal of 1340310530 is 350130431.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1020866401 + 319444129 = 31951^2 + 17873^2 .

It is a super-3 number, since 3×1340310530³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

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, 155576 + ... + 163964.

Almost surely, 2^1340310530 is an apocalyptic number.

1340310530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340310530 is a deficient number, since it is larger than the sum of its proper divisors (1260253870).

1340310530 is a wasteful number, since it uses less digits than its factorization.

1340310530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9638.

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

The square root of 1340310530 is about 36610.2517063185. The cubic root of 1340310530 is about 1102.5589268573.

Adding to 1340310530 its reverse (350130431), we get a palindrome (1690440961).

The spelling of 1340310530 in words is "one billion, three hundred forty million, three hundred ten thousand, five hundred thirty".