2307409 has 4 divisors (see below), whose sum is σ = 2484916. Its totient is φ = 2129904.

The previous prime is 2307407. The next prime is 2307419. The reversal of 2307409 is 9047032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 140625 + 2166784 = 375^2 + 1472^2 .

It is a cyclic number.

It is not a de Polignac number, because 2307409 - 2¹ = 2307407 is a prime.

It is a Duffinian number.

2307409 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2307407) 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, 88734 + ... + 88759.

It is an arithmetic number, because the mean of its divisors is an integer number (621229).

2^2307409 is an apocalyptic number.

It is an amenable number.

2307409 is a deficient number, since it is larger than the sum of its proper divisors (177507).

2307409 is a wasteful number, since it uses less digits than its factorization.

2307409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177506.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 2307409 is about 1519.0157997862. The cubic root of 2307409 is about 132.1421983062.

The spelling of 2307409 in words is "two million, three hundred seven thousand, four hundred nine".