1992543072 has 192 divisors, whose sum is σ = 6279275520. Its totient is φ = 546545664.

The previous prime is 1992543043. The next prime is 1992543097. The reversal of 1992543072 is 2703452991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 400633 + ... + 405575.

It is an arithmetic number, because the mean of its divisors is an integer number (32704560).

Almost surely, 2^1992543072 is an apocalyptic number.

1992543072 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 1992543072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3139637760).

1992543072 is an abundant number, since it is smaller than the sum of its proper divisors (4286732448).

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

1992543072 is a wasteful number, since it uses less digits than its factorization.

1992543072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005 (or 4997 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 1992543072 is about 44637.9107037953. The cubic root of 1992543072 is about 1258.3532430145.

The spelling of 1992543072 in words is "one billion, nine hundred ninety-two million, five hundred forty-three thousand, seventy-two".