1992738528 has 288 divisors, whose sum is σ = 6476101632. Its totient is φ = 575769600.

The previous prime is 1992738523. The next prime is 1992738533. The reversal of 1992738528 is 8258372991.

1992738528 is a `hidden beast` number, since 1 + 99 + 27 + 3 + 8 + 528 = 666.

1992738528 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1992738523) and next prime (1992738533).

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992738523) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10115326 + ... + 10115522.

It is an arithmetic number, because the mean of its divisors is an integer number (22486464).

Almost surely, 2^1992738528 is an apocalyptic number.

1992738528 is a gapful number since it is divisible by the number (18) 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 1992738528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3238050816).

1992738528 is an abundant number, since it is smaller than the sum of its proper divisors (4483363104).

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

1992738528 is a wasteful number, since it uses less digits than its factorization.

1992738528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 347 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 1992738528 is about 44640.0999998880. The cubic root of 1992738528 is about 1258.3943871940.

The spelling of 1992738528 in words is "one billion, nine hundred ninety-two million, seven hundred thirty-eight thousand, five hundred twenty-eight".