1920798 has 48 divisors (see below), whose sum is σ = 4633200. Its totient is φ = 570240.

The previous prime is 1920797. The next prime is 1920803. The reversal of 1920798 is 8970291.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17568 + ... + 17676.

It is an arithmetic number, because the mean of its divisors is an integer number (96525).

2^1920798 is an apocalyptic number.

1920798 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1920798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2316600).

1920798 is an abundant number, since it is smaller than the sum of its proper divisors (2712402).

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

1920798 is a wasteful number, since it uses less digits than its factorization.

1920798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 1920798 is about 1385.9285695879. The cubic root of 1920798 is about 124.3065170999.

The spelling of 1920798 in words is "one million, nine hundred twenty thousand, seven hundred ninety-eight".