3420443 has 4 divisors (see below), whose sum is σ = 3683568. Its totient is φ = 3157320.

The previous prime is 3420433. The next prime is 3420457. The reversal of 3420443 is 3440243.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3420443 - 2⁴ = 3420427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3420433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131543 + ... + 131568.

It is an arithmetic number, because the mean of its divisors is an integer number (920892).

Almost surely, 2^3420443 is an apocalyptic number.

3420443 is a deficient number, since it is larger than the sum of its proper divisors (263125).

3420443 is a wasteful number, since it uses less digits than its factorization.

3420443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263124.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 3420443 is about 1849.4439704949. The cubic root of 3420443 is about 150.6702304436.

Adding to 3420443 its reverse (3440243), we get a palindrome (6860686).

The spelling of 3420443 in words is "three million, four hundred twenty thousand, four hundred forty-three".