1368196409 has 8 divisors (see below), whose sum is σ = 1380984960. Its totient is φ = 1355461776.

The previous prime is 1368196391. The next prime is 1368196421. The reversal of 1368196409 is 9046918631.

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

It is a cyclic number.

It is not a de Polignac number, because 1368196409 - 2¹² = 1368192313 is a prime.

It is a super-2 number, since 2×1368196409² = 3743922827200990562, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1368198409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38432 + ... + 64910.

It is an arithmetic number, because the mean of its divisors is an integer number (172623120).

Almost surely, 2^1368196409 is an apocalyptic number.

It is an amenable number.

1368196409 is a deficient number, since it is larger than the sum of its proper divisors (12788551).

1368196409 is a wasteful number, since it uses less digits than its factorization.

1368196409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26959.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 1368196409 is about 36989.1390681102. The cubic root of 1368196409 is about 1110.1529451344.

The spelling of 1368196409 in words is "one billion, three hundred sixty-eight million, one hundred ninety-six thousand, four hundred nine".