1988311232 has 28 divisors (see below), whose sum is σ = 4072835136. Its totient is φ = 962085120.

The previous prime is 1988311207. The next prime is 1988311243. The reversal of 1988311232 is 2321138891.

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 3 ways as a sum of consecutive naturals, for example, 499103 + ... + 503070.

Almost surely, 2^1988311232 is an apocalyptic number.

It is an amenable number.

1988311232 is an abundant number, since it is smaller than the sum of its proper divisors (2084523904).

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

1988311232 is a wasteful number, since it uses less digits than its factorization.

1988311232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002216 (or 1002206 counting only the distinct ones).

The product of its digits is 20736, while the sum is 38.

The square root of 1988311232 is about 44590.4836484199. The cubic root of 1988311232 is about 1257.4617651778.

The spelling of 1988311232 in words is "one billion, nine hundred eighty-eight million, three hundred eleven thousand, two hundred thirty-two".