1982188 has 12 divisors (see below), whose sum is σ = 3735760. Its totient is φ = 914832.

The previous prime is 1982173. The next prime is 1982191. The reversal of 1982188 is 8812891.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19008 + ... + 19111.

2^1982188 is an apocalyptic number.

It is an amenable number.

1982188 is a deficient number, since it is larger than the sum of its proper divisors (1753572).

1982188 is a wasteful number, since it uses less digits than its factorization.

1982188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38136 (or 38134 counting only the distinct ones).

The product of its digits is 9216, while the sum is 37.

The square root of 1982188 is about 1407.9019852248. The cubic root of 1982188 is about 125.6169605343.

The spelling of 1982188 in words is "one million, nine hundred eighty-two thousand, one hundred eighty-eight".