3445439 has 4 divisors (see below), whose sum is σ = 3449160. Its totient is φ = 3441720.

The previous prime is 3445411. The next prime is 3445451. The reversal of 3445439 is 9345443.

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: 9345443 = 821 ⋅11383.

It is a cyclic number.

It is not a de Polignac number, because 3445439 - 2¹⁶ = 3379903 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3445459) 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, 752 + ... + 2730.

It is an arithmetic number, because the mean of its divisors is an integer number (862290).

Almost surely, 2^3445439 is an apocalyptic number.

3445439 is a deficient number, since it is larger than the sum of its proper divisors (3721).

3445439 is a wasteful number, since it uses less digits than its factorization.

3445439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3720.

The product of its digits is 25920, while the sum is 32.

The square root of 3445439 is about 1856.1893761144. The cubic root of 3445439 is about 151.0363639158.

The spelling of 3445439 in words is "three million, four hundred forty-five thousand, four hundred thirty-nine".