1984142 has 8 divisors (see below), whose sum is σ = 2982432. Its totient is φ = 990000.

The previous prime is 1984139. The next prime is 1984159. The reversal of 1984142 is 2414891.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 842 + ... + 2162.

It is an arithmetic number, because the mean of its divisors is an integer number (372804).

2^1984142 is an apocalyptic number.

1984142 is a deficient number, since it is larger than the sum of its proper divisors (998290).

1984142 is a wasteful number, since it uses less digits than its factorization.

1984142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074.

The product of its digits is 2304, while the sum is 29.

The square root of 1984142 is about 1408.5957546436. The cubic root of 1984142 is about 125.6582238471.

The spelling of 1984142 in words is "one million, nine hundred eighty-four thousand, one hundred forty-two".