3420423 has 6 divisors (see below), whose sum is σ = 4940624. Its totient is φ = 2280276.

The previous prime is 3420421. The next prime is 3420427. The reversal of 3420423 is 3240243.

It is not a de Polignac number, because 3420423 - 2¹ = 3420421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3420396 and 3420405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 190015 + ... + 190032.

Almost surely, 2^3420423 is an apocalyptic number.

3420423 is a deficient number, since it is larger than the sum of its proper divisors (1520201).

3420423 is a wasteful number, since it uses less digits than its factorization.

3420423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380053 (or 380050 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 3420423 is about 1849.4385634565. The cubic root of 3420423 is about 150.6699367769.

Adding to 3420423 its reverse (3240243), we get a palindrome (6660666).

The spelling of 3420423 in words is "three million, four hundred twenty thousand, four hundred twenty-three".