1368840208 has 20 divisors (see below), whose sum is σ = 2666949840. Its totient is φ = 680595104.

The previous prime is 1368840167. The next prime is 1368840211. The reversal of 1368840208 is 8020488631.

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, 236110 + ... + 241837.

It is an arithmetic number, because the mean of its divisors is an integer number (133347492).

Almost surely, 2^1368840208 is an apocalyptic number.

It is an amenable number.

1368840208 is a deficient number, since it is larger than the sum of its proper divisors (1298109632).

1368840208 is a wasteful number, since it uses less digits than its factorization.

1368840208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478134 (or 478128 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 1368840208 is about 36997.8405856342. The cubic root of 1368840208 is about 1110.3270437454.

The spelling of 1368840208 in words is "one billion, three hundred sixty-eight million, eight hundred forty thousand, two hundred eight".