1368891200 has 84 divisors (see below), whose sum is σ = 3406528620. Its totient is φ = 541347840.

The previous prime is 1368891169. The next prime is 1368891229. The reversal of 1368891200 is 21988631.

It can be written as a sum of positive squares in 6 ways, for example, as 4032064 + 1364859136 = 2008^2 + 36944^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137594 + ... + 147206.

Almost surely, 2^1368891200 is an apocalyptic number.

1368891200 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 1368891200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1703264310).

1368891200 is an abundant number, since it is smaller than the sum of its proper divisors (2037637420).

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

1368891200 is an equidigital number, since it uses as much as digits as its factorization.

1368891200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9724 (or 9709 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 1368891200 is about 36998.5297005165. The cubic root of 1368891200 is about 1110.3408308656.

The spelling of 1368891200 in words is "one billion, three hundred sixty-eight million, eight hundred ninety-one thousand, two hundred".