3942208 has 28 divisors (see below), whose sum is σ = 8079232. Its totient is φ = 1906560.

The previous prime is 3942137. The next prime is 3942209. The reversal of 3942208 is 8022493.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3942209) 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, 991 + ... + 2977.

It is an arithmetic number, because the mean of its divisors is an integer number (288544).

Almost surely, 2^3942208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3942208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4039616).

3942208 is an abundant number, since it is smaller than the sum of its proper divisors (4137024).

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

3942208 is a wasteful number, since it uses less digits than its factorization.

3942208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030 (or 2020 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 3942208 is about 1985.4994333920. The cubic root of 3942208 is about 157.9719012148.

The spelling of 3942208 in words is "three million, nine hundred forty-two thousand, two hundred eight".