4380409 has 4 divisors (see below), whose sum is σ = 4778640. Its totient is φ = 3982180.

The previous prime is 4380403. The next prime is 4380413. The reversal of 4380409 is 9040834.

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 a cyclic number.

It is not a de Polignac number, because 4380409 - 2³ = 4380401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4380401) 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, 199099 + ... + 199120.

It is an arithmetic number, because the mean of its divisors is an integer number (1194660).

Almost surely, 2^4380409 is an apocalyptic number.

It is an amenable number.

4380409 is a deficient number, since it is larger than the sum of its proper divisors (398231).

4380409 is a wasteful number, since it uses less digits than its factorization.

4380409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398230.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 4380409 is about 2092.9426652443. The cubic root of 4380409 is about 163.6206904087.

The spelling of 4380409 in words is "four million, three hundred eighty thousand, four hundred nine".