1988260652 has 18 divisors (see below), whose sum is σ = 4047531012. Its totient is φ = 852111624.

The previous prime is 1988260621. The next prime is 1988260661. The reversal of 1988260652 is 2560628891.

It is a junction number, because it is equal to n+sod(n) for n = 1988260597 and 1988260606.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5071898 + ... + 5072289.

It is an arithmetic number, because the mean of its divisors is an integer number (224862834).

Almost surely, 2^1988260652 is an apocalyptic number.

It is an amenable number.

1988260652 is an abundant number, since it is smaller than the sum of its proper divisors (2059270360).

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

1988260652 is a wasteful number, since it uses less digits than its factorization.

1988260652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10144205 (or 10144196 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 1988260652 is about 44589.9164834383. The cubic root of 1988260652 is about 1257.4511023677.

The spelling of 1988260652 in words is "one billion, nine hundred eighty-eight million, two hundred sixty thousand, six hundred fifty-two".