1368738447 has 8 divisors (see below), whose sum is σ = 1874308656. Its totient is φ = 887830272.

The previous prime is 1368738431. The next prime is 1368738451. The reversal of 1368738447 is 7448378631.

It is a happy number.

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

It is not a de Polignac number, because 1368738447 - 2⁴ = 1368738431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1368738447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368738407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6165378 + ... + 6165599.

It is an arithmetic number, because the mean of its divisors is an integer number (234288582).

Almost surely, 2^1368738447 is an apocalyptic number.

1368738447 is a deficient number, since it is larger than the sum of its proper divisors (505570209).

1368738447 is a wasteful number, since it uses less digits than its factorization.

1368738447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12331017.

The product of its digits is 2709504, while the sum is 51.

The square root of 1368738447 is about 36996.4653311637. The cubic root of 1368738447 is about 1110.2995287758.

The spelling of 1368738447 in words is "one billion, three hundred sixty-eight million, seven hundred thirty-eight thousand, four hundred forty-seven".