1340558668 has 24 divisors (see below), whose sum is σ = 2455778304. Its totient is φ = 639517200.

The previous prime is 1340558651. The next prime is 1340558671. The reversal of 1340558668 is 8668550431.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67330 + ... + 84937.

It is an arithmetic number, because the mean of its divisors is an integer number (102324096).

Almost surely, 2^1340558668 is an apocalyptic number.

It is an amenable number.

1340558668 is a deficient number, since it is larger than the sum of its proper divisors (1115219636).

1340558668 is a wasteful number, since it uses less digits than its factorization.

1340558668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152373 (or 152371 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The square root of 1340558668 is about 36613.6404636305. The cubic root of 1340558668 is about 1102.6269633009.

The spelling of 1340558668 in words is "one billion, three hundred forty million, five hundred fifty-eight thousand, six hundred sixty-eight".