1340346346 has 8 divisors (see below), whose sum is σ = 2013007140. Its totient is φ = 669343968.

The previous prime is 1340346341. The next prime is 1340346379. The reversal of 1340346346 is 6436430431.

It can be written as a sum of positive squares in 2 ways, for example, as 964413025 + 375933321 = 31055^2 + 19389^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1340346341) 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, 412581 + ... + 415816.

Almost surely, 2^1340346346 is an apocalyptic number.

1340346346 is a deficient number, since it is larger than the sum of its proper divisors (672660794).

1340346346 is an equidigital number, since it uses as much as digits as its factorization.

1340346346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829208.

The product of its (nonzero) digits is 62208, while the sum is 34.

The square root of 1340346346 is about 36610.7408556560. The cubic root of 1340346346 is about 1102.5687476906.

Adding to 1340346346 its reverse (6436430431), we get a palindrome (7776776777).

The spelling of 1340346346 in words is "one billion, three hundred forty million, three hundred forty-six thousand, three hundred forty-six".