3728332800 has 720 divisors, whose sum is σ = 14745931200. Its totient is φ = 928972800.

The previous prime is 3728332739. The next prime is 3728332801. The reversal of 3728332800 is 82338273.

3728332800 is a `hidden beast` number, since 372 + 8 + 3 + 3 + 280 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3728332801) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 120268785 + ... + 120268815.

It is an arithmetic number, because the mean of its divisors is an integer number (20480460).

Almost surely, 2^3728332800 is an apocalyptic number.

3728332800 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 3728332800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7372965600).

3728332800 is an abundant number, since it is smaller than the sum of its proper divisors (11017598400).

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

3728332800 is a wasteful number, since it uses less digits than its factorization.

3728332800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 3728332800 is about 61060.0753356889. The cubic root of 3728332800 is about 1550.6182479905.

The spelling of 3728332800 in words is "three billion, seven hundred twenty-eight million, three hundred thirty-two thousand, eight hundred".