2000331409 has 2 divisors, whose sum is σ = 2000331410. Its totient is φ = 2000331408.

The previous prime is 2000331373. The next prime is 2000331433. The reversal of 2000331409 is 9041330002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1991658384 + 8673025 = 44628^2 + 2945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2000331409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2000331409.

It is not a weakly prime, because it can be changed into another prime (2000331439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000165704 + 1000165705.

It is an arithmetic number, because the mean of its divisors is an integer number (1000165705).

Almost surely, 2^2000331409 is an apocalyptic number.

It is an amenable number.

2000331409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000331409 is an equidigital number, since it uses as much as digits as its factorization.

2000331409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 2000331409 is about 44725.0646617755. The cubic root of 2000331409 is about 1259.9906375806.

The spelling of 2000331409 in words is "two billion, three hundred thirty-one thousand, four hundred nine".