1988539204 has 6 divisors (see below), whose sum is σ = 3479943614. Its totient is φ = 994269600.

The previous prime is 1988539177. The next prime is 1988539219. The reversal of 1988539204 is 4029358891.

It can be written as a sum of positive squares in only one way, i.e., 1717936704 + 270602500 = 41448^2 + 16450^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248567397 + ... + 248567404.

Almost surely, 2^1988539204 is an apocalyptic number.

It is an amenable number.

1988539204 is a deficient number, since it is larger than the sum of its proper divisors (1491404410).

1988539204 is a wasteful number, since it uses less digits than its factorization.

1988539204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497134805 (or 497134803 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 1988539204 is about 44593.0398604984. The cubic root of 1988539204 is about 1257.5098218927.

The spelling of 1988539204 in words is "one billion, nine hundred eighty-eight million, five hundred thirty-nine thousand, two hundred four".