1340043814 has 8 divisors (see below), whose sum is σ = 2021685120. Its totient is φ = 666148776.

The previous prime is 1340043797. The next prime is 1340043821. The reversal of 1340043814 is 4183400431.

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

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, 1936134 + ... + 1936825.

It is an arithmetic number, because the mean of its divisors is an integer number (252710640).

Almost surely, 2^1340043814 is an apocalyptic number.

1340043814 is a deficient number, since it is larger than the sum of its proper divisors (681641306).

1340043814 is a wasteful number, since it uses less digits than its factorization.

1340043814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3873134.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 1340043814 is about 36606.6088841892. The cubic root of 1340043814 is about 1102.4857871859.

The spelling of 1340043814 in words is "one billion, three hundred forty million, forty-three thousand, eight hundred fourteen".