2003999941 has 2 divisors, whose sum is σ = 2003999942. Its totient is φ = 2003999940.

The previous prime is 2003999923. The next prime is 2003999951. The reversal of 2003999941 is 1499993002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1948869316 + 55130625 = 44146^2 + 7425^2 .

It is a cyclic number.

It is not a de Polignac number, because 2003999941 - 2⁹ = 2003999429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2003999891 and 2003999900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2003999951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001999970 + 1001999971.

It is an arithmetic number, because the mean of its divisors is an integer number (1001999971).

Almost surely, 2^2003999941 is an apocalyptic number.

It is an amenable number.

2003999941 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003999941 is an equidigital number, since it uses as much as digits as its factorization.

2003999941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157464, while the sum is 46.

The square root of 2003999941 is about 44766.0579122174. The cubic root of 2003999941 is about 1260.7604255452.

The spelling of 2003999941 in words is "two billion, three million, nine hundred ninety-nine thousand, nine hundred forty-one".