1988843204 has 12 divisors (see below), whose sum is σ = 3499706028. Its totient is φ = 988927200.

The previous prime is 1988843071. The next prime is 1988843237. The reversal of 1988843204 is 4023488891.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 77404804 + 1911438400 = 8798^2 + 43720^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1372787 + ... + 1374234.

It is an arithmetic number, because the mean of its divisors is an integer number (291642169).

Almost surely, 2^1988843204 is an apocalyptic number.

It is an amenable number.

1988843204 is a deficient number, since it is larger than the sum of its proper divisors (1510862824).

1988843204 is a wasteful number, since it uses less digits than its factorization.

1988843204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747206 (or 2747204 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 47.

The square root of 1988843204 is about 44596.4483339200. The cubic root of 1988843204 is about 1257.5738996684.

The spelling of 1988843204 in words is "one billion, nine hundred eighty-eight million, eight hundred forty-three thousand, two hundred four".