1980386 has 8 divisors (see below), whose sum is σ = 3015120. Its totient is φ = 975348.

The previous prime is 1980383. The next prime is 1980397. The reversal of 1980386 is 6830891.

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 (1980383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7256 + ... + 7523.

It is an arithmetic number, because the mean of its divisors is an integer number (376890).

2^1980386 is an apocalyptic number.

1980386 is a deficient number, since it is larger than the sum of its proper divisors (1034734).

1980386 is a wasteful number, since it uses less digits than its factorization.

1980386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14848.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1980386 is about 1407.2618803904. The cubic root of 1980386 is about 125.5788830172.

The spelling of 1980386 in words is "one million, nine hundred eighty thousand, three hundred eighty-six".