1340340532 has 12 divisors (see below), whose sum is σ = 2389852836. Its totient is φ = 657525440.

The previous prime is 1340340499. The next prime is 1340340559. The reversal of 1340340532 is 2350430431.

It can be written as a sum of positive squares in 2 ways, for example, as 1150837776 + 189502756 = 33924^2 + 13766^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1340340497 and 1340340506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3160969 + ... + 3161392.

It is an arithmetic number, because the mean of its divisors is an integer number (199154403).

Almost surely, 2^1340340532 is an apocalyptic number.

It is an amenable number.

1340340532 is a deficient number, since it is larger than the sum of its proper divisors (1049512304).

1340340532 is a wasteful number, since it uses less digits than its factorization.

1340340532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6322418 (or 6322416 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 1340340532 is about 36610.6614526425. The cubic root of 1340340532 is about 1102.5671534897.

Adding to 1340340532 its reverse (2350430431), we get a palindrome (3690770963).

It can be divided in two parts, 13403 and 40532, that added together give a palindrome (53935).

The spelling of 1340340532 in words is "one billion, three hundred forty million, three hundred forty thousand, five hundred thirty-two".