1928836 has 36 divisors (see below), whose sum is σ = 4234188. Its totient is φ = 762048.

The previous prime is 1928831. The next prime is 1928869. The reversal of 1928836 is 6388291.

1928836 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in 2 ways, for example, as 705600 + 1223236 = 840^2 + 1106^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1928795 and 1928804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1928831) 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 11 ways as a sum of consecutive naturals, for example, 2170 + ... + 2926.

2^1928836 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 1928836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2117094).

1928836 is an abundant number, since it is smaller than the sum of its proper divisors (2305352).

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

1928836 is a wasteful number, since it uses less digits than its factorization.

1928836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788 (or 779 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 1928836 is about 1388.8254029935. The cubic root of 1928836 is about 124.4796717400.

The spelling of 1928836 in words is "one million, nine hundred twenty-eight thousand, eight hundred thirty-six".