2429509 has 2 divisors, whose sum is σ = 2429510. Its totient is φ = 2429508.

The previous prime is 2429503. The next prime is 2429519. The reversal of 2429509 is 9059242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2184484 + 245025 = 1478^2 + 495^2 .

It is a cyclic number.

It is not a de Polignac number, because 2429509 - 2⁷ = 2429381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2429503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1214754 + 1214755.

It is an arithmetic number, because the mean of its divisors is an integer number (1214755).

2^2429509 is an apocalyptic number.

It is an amenable number.

2429509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2429509 is an equidigital number, since it uses as much as digits as its factorization.

2429509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 2429509 is about 1558.6882305323. The cubic root of 2429509 is about 134.4330867673.

The spelling of 2429509 in words is "two million, four hundred twenty-nine thousand, five hundred nine".