1340343241 has 8 divisors (see below), whose sum is σ = 1397117120. Its totient is φ = 1284650928.

The previous prime is 1340343211. The next prime is 1340343247. The reversal of 1340343241 is 1423430431.

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

It is a cyclic number.

It is not a de Polignac number, because 1340343241 - 2⁷ = 1340343113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340343247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267861 + ... + 272818.

It is an arithmetic number, because the mean of its divisors is an integer number (174639640).

Almost surely, 2^1340343241 is an apocalyptic number.

It is an amenable number.

1340343241 is a deficient number, since it is larger than the sum of its proper divisors (56773879).

1340343241 is an equidigital number, since it uses as much as digits as its factorization.

1340343241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540783.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1340343241 is about 36610.6984500433. The cubic root of 1340343241 is about 1102.5678962990.

Adding to 1340343241 its reverse (1423430431), we get a palindrome (2763773672).

It can be divided in two parts, 13403 and 43241, that added together give a square (56644 = 238²).

The spelling of 1340343241 in words is "one billion, three hundred forty million, three hundred forty-three thousand, two hundred forty-one".