1340340354 has 12 divisors (see below), whose sum is σ = 2904070806. Its totient is φ = 446780112.

The previous prime is 1340340329. The next prime is 1340340359. The reversal of 1340340354 is 4530430431.

It can be written as a sum of positive squares in only one way, i.e., 1051510329 + 288830025 = 32427^2 + 16995^2 .

It is not an unprimeable number, because it can be changed into a prime (1340340359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37231659 + ... + 37231694.

Almost surely, 2^1340340354 is an apocalyptic number.

1340340354 is an abundant number, since it is smaller than the sum of its proper divisors (1563730452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1340340354 is a wasteful number, since it uses less digits than its factorization.

1340340354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74463361 (or 74463358 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 1340340354 is about 36610.6590216565. The cubic root of 1340340354 is about 1102.5671046819.

Adding to 1340340354 its reverse (4530430431), we get a palindrome (5870770785).

The spelling of 1340340354 in words is "one billion, three hundred forty million, three hundred forty thousand, three hundred fifty-four".