2402009 has 2 divisors, whose sum is σ = 2402010. Its totient is φ = 2402008.

The previous prime is 2401991. The next prime is 2402027. The reversal of 2402009 is 9002042.

2402009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (2401991) and next prime (2402027).

It can be written as a sum of positive squares in only one way, i.e., 2166784 + 235225 = 1472^2 + 485^2 .

It is a cyclic number.

It is not a de Polignac number, because 2402009 - 2¹⁶ = 2336473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2402039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1201004 + 1201005.

It is an arithmetic number, because the mean of its divisors is an integer number (1201005).

2^2402009 is an apocalyptic number.

It is an amenable number.

2402009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2402009 is an equidigital number, since it uses as much as digits as its factorization.

2402009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2402009 is about 1549.8416048100. The cubic root of 2402009 is about 133.9239376750.

The spelling of 2402009 in words is "two million, four hundred two thousand, nine".