1968220800 has 576 divisors, whose sum is σ = 8655279360. Its totient is φ = 414720000.

The previous prime is 1968220789. The next prime is 1968220801. The reversal of 1968220800 is 80228691.

It is a tau number, because it is divible by the number of its divisors (576).

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

It is not an unprimeable number, because it can be changed into a prime (1968220801) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2620425 + ... + 2621175.

Almost surely, 2^1968220800 is an apocalyptic number.

1968220800 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 1968220800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4327639680).

1968220800 is an abundant number, since it is smaller than the sum of its proper divisors (6687058560).

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

1968220800 is a wasteful number, since it uses less digits than its factorization.

1968220800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801 (or 781 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1968220800 is about 44364.6345640308. The cubic root of 1968220800 is about 1253.2121758040.

The spelling of 1968220800 in words is "one billion, nine hundred sixty-eight million, two hundred twenty thousand, eight hundred".