1988210304 has 96 divisors (see below), whose sum is σ = 5918667300. Its totient is φ = 639873024.

The previous prime is 1988210297. The next prime is 1988210363. The reversal of 1988210304 is 4030128891.

It can be written as a sum of positive squares in 2 ways, for example, as 1717936704 + 270273600 = 41448^2 + 16440^2 .

It is a tau number, because it is divible by the number of its divisors (96).

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 (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3652 + ... + 63164.

Almost surely, 2^1988210304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1988210304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2959333650).

1988210304 is an abundant number, since it is smaller than the sum of its proper divisors (3930456996).

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

1988210304 is a wasteful number, since it uses less digits than its factorization.

1988210304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59562 (or 59547 counting only the distinct ones).

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

The square root of 1988210304 is about 44589.3519127605. The cubic root of 1988210304 is about 1257.4404882861.

The spelling of 1988210304 in words is "one billion, nine hundred eighty-eight million, two hundred ten thousand, three hundred four".