1368013646 has 8 divisors (see below), whose sum is σ = 2052248520. Its totient is φ = 683930808.

The previous prime is 1368013639. The next prime is 1368013693. The reversal of 1368013646 is 6463108631.

It is a happy number.

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

It is a super-2 number, since 2×1368013646² = 3742922671284426632, which contains 22 as substring.

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, 11936 + ... + 53651.

It is an arithmetic number, because the mean of its divisors is an integer number (256531065).

Almost surely, 2^1368013646 is an apocalyptic number.

1368013646 is a deficient number, since it is larger than the sum of its proper divisors (684234874).

1368013646 is a wasteful number, since it uses less digits than its factorization.

1368013646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76018.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 1368013646 is about 36986.6684901466. The cubic root of 1368013646 is about 1110.1035117060.

The spelling of 1368013646 in words is "one billion, three hundred sixty-eight million, thirteen thousand, six hundred forty-six".