3828409 has 8 divisors (see below), whose sum is σ = 4140360. Its totient is φ = 3518976.

The previous prime is 3828401. The next prime is 3828413. The reversal of 3828409 is 9048283.

It can be written as a sum of positive squares in 4 ways, for example, as 577600 + 3250809 = 760^2 + 1803^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3828409 - 2³ = 3828401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3828401) 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 7 ways as a sum of consecutive naturals, for example, 3657 + ... + 4585.

It is an arithmetic number, because the mean of its divisors is an integer number (517545).

Almost surely, 2^3828409 is an apocalyptic number.

It is an amenable number.

3828409 is a deficient number, since it is larger than the sum of its proper divisors (311951).

3828409 is a wasteful number, since it uses less digits than its factorization.

3828409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 3828409 is about 1956.6320553441. The cubic root of 3828409 is about 156.4369870202.

The spelling of 3828409 in words is "three million, eight hundred twenty-eight thousand, four hundred nine".