1988792 has 24 divisors (see below), whose sum is σ = 4040640. Its totient is φ = 917280.

The previous prime is 1988759. The next prime is 1988797. The reversal of 1988792 is 2978891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1988797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 617 + ... + 2087.

It is an arithmetic number, because the mean of its divisors is an integer number (168360).

2^1988792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1988792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2020320).

1988792 is an abundant number, since it is smaller than the sum of its proper divisors (2051848).

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

1988792 is a wasteful number, since it uses less digits than its factorization.

1988792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503 (or 1486 counting only the distinct ones).

The product of its digits is 72576, while the sum is 44.

The square root of 1988792 is about 1410.2453687213. The cubic root of 1988792 is about 125.7563107236.

Subtracting 1988792 from its reverse (2978891), we obtain a palindrome (990099).

The spelling of 1988792 in words is "one million, nine hundred eighty-eight thousand, seven hundred ninety-two".