2028213532800 has 1152 divisors, whose sum is σ = 9431400101760. Its totient is φ = 402749521920.

The previous prime is 2028213532799. The next prime is 2028213532819. The reversal of 2028213532800 is 82353128202.

It is a happy number.

2028213532800 is a `hidden beast` number, since 2 + 0 + 2 + 8 + 21 + 353 + 280 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a super-2 number, since 2×2028213532800² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 44530839 + ... + 44576361.

It is an arithmetic number, because the mean of its divisors is an integer number (8186979255).

Almost surely, 2^{2028213532800} is an apocalyptic number.

2028213532800 is a gapful number since it is divisible by the number (20) 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 2028213532800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4715700050880).

2028213532800 is an abundant number, since it is smaller than the sum of its proper divisors (7403186568960).

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

2028213532800 is a wasteful number, since it uses less digits than its factorization.

2028213532800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45590 (or 45570 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 2028213532800 in words is "two trillion, twenty-eight billion, two hundred thirteen million, five hundred thirty-two thousand, eight hundred".