2002632409 has 2 divisors, whose sum is σ = 2002632410. Its totient is φ = 2002632408.

The previous prime is 2002632407. The next prime is 2002632427. The reversal of 2002632409 is 9042362002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1005841225 + 996791184 = 31715^2 + 31572^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002632409 - 2¹ = 2002632407 is a prime.

Together with 2002632407, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2002632407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001316204 + 1001316205.

It is an arithmetic number, because the mean of its divisors is an integer number (1001316205).

Almost surely, 2^2002632409 is an apocalyptic number.

It is an amenable number.

2002632409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002632409 is an equidigital number, since it uses as much as digits as its factorization.

2002632409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 2002632409 is about 44750.7810993283. The cubic root of 2002632409 is about 1260.4735788039.

The spelling of 2002632409 in words is "two billion, two million, six hundred thirty-two thousand, four hundred nine".