1982718 has 20 divisors (see below), whose sum is σ = 4443120. Its totient is φ = 660852.

The previous prime is 1982713. The next prime is 1982723. The reversal of 1982718 is 8172891.

It is an interprime number because it is at equal distance from previous prime (1982713) and next prime (1982723).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982713) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5958 + ... + 6281.

It is an arithmetic number, because the mean of its divisors is an integer number (222156).

2^1982718 is an apocalyptic number.

1982718 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1982718 is an abundant number, since it is smaller than the sum of its proper divisors (2460402).

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

1982718 is a wasteful number, since it uses less digits than its factorization.

1982718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12253 (or 12244 counting only the distinct ones).

The product of its digits is 8064, while the sum is 36.

The square root of 1982718 is about 1408.0901959747. The cubic root of 1982718 is about 125.6281554119.

It can be divided in two parts, 198 and 2718, that added together give a square (2916 = 54²).

The spelling of 1982718 in words is "one million, nine hundred eighty-two thousand, seven hundred eighteen".