1980936 has 48 divisors (see below), whose sum is σ = 5569200. Its totient is φ = 659664.

The previous prime is 1980929. The next prime is 1980941. The reversal of 1980936 is 6390891.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1980936.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1435 + ... + 2453.

It is an arithmetic number, because the mean of its divisors is an integer number (116025).

2^1980936 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 1980936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2784600).

1980936 is an abundant number, since it is smaller than the sum of its proper divisors (3588264).

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

1980936 is a wasteful number, since it uses less digits than its factorization.

1980936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 1980936 is about 1407.4572817674. The cubic root of 1980936 is about 125.5905073492.

It can be divided in two parts, 1980 and 936, that added together give a square (2916 = 54²).

The spelling of 1980936 in words is "one million, nine hundred eighty thousand, nine hundred thirty-six".