1340043748 has 12 divisors (see below), whose sum is σ = 2369253292. Its totient is φ = 663114240.

The previous prime is 1340043721. The next prime is 1340043797. The reversal of 1340043748 is 8473400431.

It can be written as a sum of positive squares in 2 ways, for example, as 962985024 + 377058724 = 31032^2 + 19418^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1726473 + ... + 1727248.

Almost surely, 2^1340043748 is an apocalyptic number.

It is an amenable number.

1340043748 is a deficient number, since it is larger than the sum of its proper divisors (1029209544).

1340043748 is a wasteful number, since it uses less digits than its factorization.

1340043748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3453822 (or 3453820 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 1340043748 is about 36606.6079827126. The cubic root of 1340043748 is about 1102.4857690860.

The spelling of 1340043748 in words is "one billion, three hundred forty million, forty-three thousand, seven hundred forty-eight".