1982722 has 8 divisors (see below), whose sum is σ = 3398976. Its totient is φ = 849732.

The previous prime is 1982713. The next prime is 1982723. The reversal of 1982722 is 2272891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1982723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70798 + ... + 70825.

It is an arithmetic number, because the mean of its divisors is an integer number (424872).

2^1982722 is an apocalyptic number.

1982722 is a deficient number, since it is larger than the sum of its proper divisors (1416254).

1982722 is a wasteful number, since it uses less digits than its factorization.

1982722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141632.

The product of its digits is 4032, while the sum is 31.

The square root of 1982722 is about 1408.0916163375. The cubic root of 1982722 is about 125.6282398940.

It can be divided in two parts, 1982 and 722, that added together give a square (2704 = 52²).

The spelling of 1982722 in words is "one million, nine hundred eighty-two thousand, seven hundred twenty-two".