1340886786 has 8 divisors (see below), whose sum is σ = 2681773584. Its totient is φ = 446962260.

The previous prime is 1340886779. The next prime is 1340886817. The reversal of 1340886786 is 6876880431.

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

1340886786 is an admirable 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, 111740560 + ... + 111740571.

It is an arithmetic number, because the mean of its divisors is an integer number (335221698).

Almost surely, 2^1340886786 is an apocalyptic number.

1340886786 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1340886786 is a wasteful number, since it uses less digits than its factorization.

1340886786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223481136.

The product of its (nonzero) digits is 1548288, while the sum is 51.

The square root of 1340886786 is about 36618.1210058627. The cubic root of 1340886786 is about 1102.7169164050.

The spelling of 1340886786 in words is "one billion, three hundred forty million, eight hundred eighty-six thousand, seven hundred eighty-six".