3820439 has 8 divisors (see below), whose sum is σ = 4428288. Its totient is φ = 3228120.

The previous prime is 3820429. The next prime is 3820441. The reversal of 3820439 is 9340283.

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

It is not a de Polignac number, because 3820439 - 2⁴ = 3820423 is a prime.

It is a d-powerful number, because it can be written as 3¹³ + 8⁵ + 2¹¹ + 0 + 4⁸ + 3¹³ + 9⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3820429) 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, 3347 + ... + 4340.

It is an arithmetic number, because the mean of its divisors is an integer number (553536).

Almost surely, 2^3820439 is an apocalyptic number.

3820439 is a deficient number, since it is larger than the sum of its proper divisors (607849).

3820439 is an equidigital number, since it uses as much as digits as its factorization.

3820439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7765.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 3820439 is about 1954.5943313128. The cubic root of 3820439 is about 156.3283545144.

The spelling of 3820439 in words is "three million, eight hundred twenty thousand, four hundred thirty-nine".