1340803671 has 4 divisors (see below), whose sum is σ = 1787738232. Its totient is φ = 893869112.

The previous prime is 1340803657. The next prime is 1340803679. The reversal of 1340803671 is 1763080431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1340803671 - 2⁷ = 1340803543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340803679) 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, 223467276 + ... + 223467281.

It is an arithmetic number, because the mean of its divisors is an integer number (446934558).

Almost surely, 2^1340803671 is an apocalyptic number.

1340803671 is a deficient number, since it is larger than the sum of its proper divisors (446934561).

1340803671 is an equidigital number, since it uses as much as digits as its factorization.

1340803671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446934560.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1340803671 is about 36616.9860993501. The cubic root of 1340803671 is about 1102.6941319285.

The spelling of 1340803671 in words is "one billion, three hundred forty million, eight hundred three thousand, six hundred seventy-one".