1988072200 has 24 divisors (see below), whose sum is σ = 4622268330. Its totient is φ = 795228800.

The previous prime is 1988072171. The next prime is 1988072227. The reversal of 1988072200 is 22708891.

It can be written as a sum of positive squares in 3 ways, for example, as 1003242276 + 984829924 = 31674^2 + 31382^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1988072200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4969981 + ... + 4970380.

Almost surely, 2^1988072200 is an apocalyptic number.

1988072200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1988072200 is an abundant number, since it is smaller than the sum of its proper divisors (2634196130).

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

1988072200 is a wasteful number, since it uses less digits than its factorization.

1988072200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9940377 (or 9940368 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 1988072200 is about 44587.8032650186. The cubic root of 1988072200 is about 1257.4113730592.

The spelling of 1988072200 in words is "one billion, nine hundred eighty-eight million, seventy-two thousand, two hundred".