1988284 has 12 divisors (see below), whose sum is σ = 3529008. Its totient is φ = 980000.

The previous prime is 1988279. The next prime is 1988291. The reversal of 1988284 is 4828891.

It is a congruent number.

It is an unprimeable number.

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, 3217 + ... + 3784.

It is an arithmetic number, because the mean of its divisors is an integer number (294084).

2^1988284 is an apocalyptic number.

It is an amenable number.

1988284 is a deficient number, since it is larger than the sum of its proper divisors (1540724).

1988284 is a wasteful number, since it uses less digits than its factorization.

1988284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7076 (or 7074 counting only the distinct ones).

The product of its digits is 36864, while the sum is 40.

The square root of 1988284 is about 1410.0652467173. The cubic root of 1988284 is about 125.7456024401.

The spelling of 1988284 in words is "one million, nine hundred eighty-eight thousand, two hundred eighty-four".