4213908 has 18 divisors (see below), whose sum is σ = 10651914. Its totient is φ = 1404624.

The previous prime is 4213907. The next prime is 4213949. The reversal of 4213908 is 8093124.

It can be written as a sum of positive squares in only one way, i.e., 4112784 + 101124 = 2028^2 + 318^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4213901) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 58491 + ... + 58562.

It is an arithmetic number, because the mean of its divisors is an integer number (591773).

Almost surely, 2^4213908 is an apocalyptic number.

It is an amenable number.

4213908 is an abundant number, since it is smaller than the sum of its proper divisors (6438006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4213908 is a wasteful number, since it uses less digits than its factorization.

4213908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117063 (or 117058 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 4213908 is about 2052.7805532984. The cubic root of 4213908 is about 161.5207601744.

The spelling of 4213908 in words is "four million, two hundred thirteen thousand, nine hundred eight".