2407409 has 4 divisors (see below), whose sum is σ = 2410740. Its totient is φ = 2404080.

The previous prime is 2407403. The next prime is 2407411. The reversal of 2407409 is 9047042.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9047042 = 2 ⋅4523521.

It can be written as a sum of positive squares in 2 ways, for example, as 717409 + 1690000 = 847^2 + 1300^2 .

It is a cyclic number.

It is not a de Polignac number, because 2407409 - 2¹⁶ = 2341873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2407403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74 + ... + 2195.

It is an arithmetic number, because the mean of its divisors is an integer number (602685).

2^2407409 is an apocalyptic number.

It is an amenable number.

2407409 is a deficient number, since it is larger than the sum of its proper divisors (3331).

2407409 is a wasteful number, since it uses less digits than its factorization.

2407409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3330.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 2407409 is about 1551.5827403010. The cubic root of 2407409 is about 134.0242215070.

The spelling of 2407409 in words is "two million, four hundred seven thousand, four hundred nine".