1988205252 has 36 divisors (see below), whose sum is σ = 5062190448. Its totient is φ = 602331200.

The previous prime is 1988205227. The next prime is 1988205283. The reversal of 1988205252 is 2525028891.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 510352 + ... + 514232.

Almost surely, 2^1988205252 is an apocalyptic number.

1988205252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1988205252 is an abundant number, since it is smaller than the sum of its proper divisors (3073985196).

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

1988205252 is an equidigital number, since it uses as much as digits as its factorization.

1988205252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7780 (or 3897 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 42.

The square root of 1988205252 is about 44589.2952624282. The cubic root of 1988205252 is about 1257.4394232420.

The spelling of 1988205252 in words is "one billion, nine hundred eighty-eight million, two hundred five thousand, two hundred fifty-two".