3968542800 has 180 divisors, whose sum is σ = 13961527164. Its totient is φ = 1043712000.

The previous prime is 3968542771. The next prime is 3968542811. The reversal of 3968542800 is 82458693.

It can be written as a sum of positive squares in 6 ways, for example, as 395850816 + 3572691984 = 19896^2 + 59772^2 .

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 255250 + ... + 270350.

Almost surely, 2^3968542800 is an apocalyptic number.

3968542800 is a gapful number since it is divisible by the number (30) 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 3968542800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6980763582).

3968542800 is an abundant number, since it is smaller than the sum of its proper divisors (9992984364).

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

3968542800 is a wasteful number, since it uses less digits than its factorization.

3968542800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15198 (or 15184 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 3968542800 is about 62996.3713240691. The cubic root of 3968542800 is about 1583.2288295446.

The spelling of 3968542800 in words is "three billion, nine hundred sixty-eight million, five hundred forty-two thousand, eight hundred".