4228686 has 96 divisors (see below), whose sum is σ = 11950848. Its totient is φ = 1088640.

The previous prime is 4228673. The next prime is 4228723. The reversal of 4228686 is 6868224.

It is a self number, because there is not a number n which added to its sum of digits gives 4228686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37366 + ... + 37478.

It is an arithmetic number, because the mean of its divisors is an integer number (124488).

Almost surely, 2^4228686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4228686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5975424).

4228686 is an abundant number, since it is smaller than the sum of its proper divisors (7722162).

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

4228686 is a wasteful number, since it uses less digits than its factorization.

4228686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 136 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 4228686 is about 2056.3769109772. The cubic root of 4228686 is about 161.7093554089.

The spelling of 4228686 in words is "four million, two hundred twenty-eight thousand, six hundred eighty-six".