1983388 has 12 divisors (see below), whose sum is σ = 3786552. Its totient is φ = 901520.

The previous prime is 1983383. The next prime is 1983389. The reversal of 1983388 is 8833891.

It is a self number, because there is not a number n which added to its sum of digits gives 1983388.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1983383) by changing a digit.

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, 22495 + ... + 22582.

It is an arithmetic number, because the mean of its divisors is an integer number (315546).

2^1983388 is an apocalyptic number.

It is an amenable number.

1983388 is a deficient number, since it is larger than the sum of its proper divisors (1803164).

1983388 is a wasteful number, since it uses less digits than its factorization.

1983388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45092 (or 45090 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 1983388 is about 1408.3280867752. The cubic root of 1983388 is about 125.6423045723.

It can be divided in two parts, 1 and 983388, that added together give a palindrome (983389).

The spelling of 1983388 in words is "one million, nine hundred eighty-three thousand, three hundred eighty-eight".