1978282 has 8 divisors (see below), whose sum is σ = 2985696. Its totient is φ = 983052.

The previous prime is 1978267. The next prime is 1978289. The reversal of 1978282 is 2828791.

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 (1978289) 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, 2628 + ... + 3295.

It is an arithmetic number, because the mean of its divisors is an integer number (373212).

2^1978282 is an apocalyptic number.

1978282 is a deficient number, since it is larger than the sum of its proper divisors (1007414).

1978282 is a wasteful number, since it uses less digits than its factorization.

1978282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6092.

The product of its digits is 16128, while the sum is 37.

The square root of 1978282 is about 1406.5141307502. The cubic root of 1978282 is about 125.5343947886.

The spelling of 1978282 in words is "one million, nine hundred seventy-eight thousand, two hundred eighty-two".