4219406 has 16 divisors (see below), whose sum is σ = 6844560. Its totient is φ = 1944000.

The previous prime is 4219363. The next prime is 4219427. The reversal of 4219406 is 6049124.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95 + ... + 2906.

It is an arithmetic number, because the mean of its divisors is an integer number (427785).

Almost surely, 2^4219406 is an apocalyptic number.

4219406 is a deficient number, since it is larger than the sum of its proper divisors (2625154).

4219406 is a wasteful number, since it uses less digits than its factorization.

4219406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3059.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 4219406 is about 2054.1192759915. The cubic root of 4219406 is about 161.5909764837.

The spelling of 4219406 in words is "four million, two hundred nineteen thousand, four hundred six".