1340632312 has 16 divisors (see below), whose sum is σ = 2514115800. Its totient is φ = 670201440.

The previous prime is 1340632289. The next prime is 1340632327. The reversal of 1340632312 is 2132360431.

It is a congruent number.

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, 55114 + ... + 75622.

Almost surely, 2^1340632312 is an apocalyptic number.

It is an amenable number.

1340632312 is a deficient number, since it is larger than the sum of its proper divisors (1173483488).

1340632312 is a wasteful number, since it uses less digits than its factorization.

1340632312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28686 (or 28682 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 1340632312 is about 36614.6461405815. The cubic root of 1340632312 is about 1102.6471539808.

Adding to 1340632312 its reverse (2132360431), we get a palindrome (3472992743).

The spelling of 1340632312 in words is "one billion, three hundred forty million, six hundred thirty-two thousand, three hundred twelve".