2402003509 has 2 divisors, whose sum is σ = 2402003510. Its totient is φ = 2402003508.

The previous prime is 2402003497. The next prime is 2402003519. The reversal of 2402003509 is 9053002042.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2401980100 + 23409 = 49010^2 + 153^2 .

It is a cyclic number.

It is not a de Polignac number, because 2402003509 - 2²¹ = 2399906357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2402003519) 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, 1201001754 + 1201001755.

It is an arithmetic number, because the mean of its divisors is an integer number (1201001755).

Almost surely, 2^2402003509 is an apocalyptic number.

It is an amenable number.

2402003509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2402003509 is an equidigital number, since it uses as much as digits as its factorization.

2402003509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2402003509 is about 49010.2388180266. The cubic root of 2402003509 is about 1339.2383562477.

The spelling of 2402003509 in words is "two billion, four hundred two million, three thousand, five hundred nine".