2003020004 has 6 divisors (see below), whose sum is σ = 3505285014. Its totient is φ = 1001510000.

The previous prime is 2003020003. The next prime is 2003020013. The reversal of 2003020004 is 4000203002.

It can be written as a sum of positive squares in only one way, i.e., 1314062500 + 688957504 = 36250^2 + 26248^2 .

It is not an unprimeable number, because it can be changed into a prime (2003020001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250377497 + ... + 250377504.

It is an arithmetic number, because the mean of its divisors is an integer number (584214169).

Almost surely, 2^2003020004 is an apocalyptic number.

It is an amenable number.

2003020004 is a deficient number, since it is larger than the sum of its proper divisors (1502265010).

2003020004 is a wasteful number, since it uses less digits than its factorization.

2003020004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500755005 (or 500755003 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 2003020004 is about 44755.1114846115. Note that the first 3 decimals coincide. The cubic root of 2003020004 is about 1260.5548920693.

Adding to 2003020004 its reverse (4000203002), we get a palindrome (6003223006).

The spelling of 2003020004 in words is "two billion, three million, twenty thousand, four".