2427409 has 4 divisors (see below), whose sum is σ = 2479104. Its totient is φ = 2375716.

The previous prime is 2427407. The next prime is 2427427. The reversal of 2427409 is 9047242.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9047242 = 2 ⋅4523621.

It is a cyclic number.

It is not a de Polignac number, because 2427409 - 2¹ = 2427407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2427407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25777 + ... + 25870.

It is an arithmetic number, because the mean of its divisors is an integer number (619776).

2^2427409 is an apocalyptic number.

It is an amenable number.

2427409 is a deficient number, since it is larger than the sum of its proper divisors (51695).

2427409 is an equidigital number, since it uses as much as digits as its factorization.

2427409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51694.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2427409 is about 1558.0144415249. The cubic root of 2427409 is about 134.3943421950.

The spelling of 2427409 in words is "two million, four hundred twenty-seven thousand, four hundred nine".