1982002004 has 6 divisors (see below), whose sum is σ = 3468503514. Its totient is φ = 991001000.

The previous prime is 1982001997. The next prime is 1982002021. The reversal of 1982002004 is 4002002891.

It can be written as a sum of positive squares in only one way, i.e., 1912312900 + 69689104 = 43730^2 + 8348^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247750247 + ... + 247750254.

It is an arithmetic number, because the mean of its divisors is an integer number (578083919).

Almost surely, 2^1982002004 is an apocalyptic number.

It is an amenable number.

1982002004 is a deficient number, since it is larger than the sum of its proper divisors (1486501510).

1982002004 is a wasteful number, since it uses less digits than its factorization.

1982002004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495500505 (or 495500503 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1982002004 is about 44519.6810860096. The cubic root of 1982002004 is about 1256.1303137743.

Adding to 1982002004 its reverse (4002002891), we get a palindrome (5984004895).

The spelling of 1982002004 in words is "one billion, nine hundred eighty-two million, two thousand, four".