1368303840 has 168 divisors, whose sum is σ = 4847122728. Its totient is φ = 364849920.

The previous prime is 1368303821. The next prime is 1368303841. The reversal of 1368303840 is 483038631.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1368303795 and 1368303804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368303841) 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 27 ways as a sum of consecutive naturals, for example, 110775 + ... + 122505.

It is an arithmetic number, because the mean of its divisors is an integer number (28851921).

Almost surely, 2^1368303840 is an apocalyptic number.

1368303840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1368303840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2423561364).

1368303840 is an abundant number, since it is smaller than the sum of its proper divisors (3478818888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1368303840 is an equidigital number, since it uses as much as digits as its factorization.

1368303840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11764 (or 11741 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 1368303840 is about 36990.5912361508. The cubic root of 1368303840 is about 1110.1820008360.

The spelling of 1368303840 in words is "one billion, three hundred sixty-eight million, three hundred three thousand, eight hundred forty".