1982838 has 32 divisors (see below), whose sum is σ = 4660992. Its totient is φ = 554400.

The previous prime is 1982837. The next prime is 1982839. The reversal of 1982838 is 8382891.

It is an interprime number because it is at equal distance from previous prime (1982837) and next prime (1982839).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 1982796 and 1982805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982833) 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 15 ways as a sum of consecutive naturals, for example, 298 + ... + 2013.

It is an arithmetic number, because the mean of its divisors is an integer number (145656).

2^1982838 is an apocalyptic number.

1982838 is an abundant number, since it is smaller than the sum of its proper divisors (2678154).

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

1982838 is a wasteful number, since it uses less digits than its factorization.

1982838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340.

The product of its digits is 27648, while the sum is 39.

The square root of 1982838 is about 1408.1328062367. The cubic root of 1982838 is about 125.6306898242.

The spelling of 1982838 in words is "one million, nine hundred eighty-two thousand, eight hundred thirty-eight".