3445421 has 8 divisors (see below), whose sum is σ = 3949440. Its totient is φ = 2944368.

The previous prime is 3445411. The next prime is 3445451. The reversal of 3445421 is 1245443.

3445421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3445421 - 2⁶ = 3445357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3445411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3080 + ... + 4046.

It is an arithmetic number, because the mean of its divisors is an integer number (493680).

Almost surely, 2^3445421 is an apocalyptic number.

It is an amenable number.

3445421 is a deficient number, since it is larger than the sum of its proper divisors (504019).

3445421 is an equidigital number, since it uses as much as digits as its factorization.

3445421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483.

The product of its digits is 1920, while the sum is 23.

The square root of 3445421 is about 1856.1845274649. The cubic root of 3445421 is about 151.0361008957.

The spelling of 3445421 in words is "three million, four hundred forty-five thousand, four hundred twenty-one".