1988572992 has 112 divisors (see below), whose sum is σ = 6175735680. Its totient is φ = 552794112.

The previous prime is 1988572979. The next prime is 1988573023. The reversal of 1988572992 is 2992758891.

It is a tau number, because it is divible by the number of its divisors (112).

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29734 + ... + 69722.

Almost surely, 2^1988572992 is an apocalyptic number.

1988572992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1988572992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3087867840).

1988572992 is an abundant number, since it is smaller than the sum of its proper divisors (4187162688).

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

1988572992 is a wasteful number, since it uses less digits than its factorization.

1988572992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40048 (or 40038 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 60.

The square root of 1988572992 is about 44593.4187072487. The cubic root of 1988572992 is about 1257.5169441228.

The spelling of 1988572992 in words is "one billion, nine hundred eighty-eight million, five hundred seventy-two thousand, nine hundred ninety-two".