2419509 has 4 divisors (see below), whose sum is σ = 3226016. Its totient is φ = 1613004.

The previous prime is 2419507. The next prime is 2419523. The reversal of 2419509 is 9059142.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2419509 - 2¹ = 2419507 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2419507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403249 + ... + 403254.

It is an arithmetic number, because the mean of its divisors is an integer number (806504).

2^2419509 is an apocalyptic number.

It is an amenable number.

2419509 is a deficient number, since it is larger than the sum of its proper divisors (806507).

2419509 is an equidigital number, since it uses as much as digits as its factorization.

2419509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806506.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 2419509 is about 1555.4770972277. The cubic root of 2419509 is about 134.2483883303.

The spelling of 2419509 in words is "two million, four hundred nineteen thousand, five hundred nine".