4228642 has 32 divisors (see below), whose sum is σ = 7392384. Its totient is φ = 1795200.

The previous prime is 4228613. The next prime is 4228649. The reversal of 4228642 is 2468224.

It is a d-powerful number, because it can be written as 4⁴ + 2 + 2³ + 8 + 6⁴ + 4¹¹ + 2¹⁵ .

It is a self number, because there is not a number n which added to its sum of digits gives 4228642.

It is not an unprimeable number, because it can be changed into a prime (4228649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30798 + ... + 30934.

It is an arithmetic number, because the mean of its divisors is an integer number (231012).

Almost surely, 2^4228642 is an apocalyptic number.

4228642 is a deficient number, since it is larger than the sum of its proper divisors (3163742).

4228642 is a wasteful number, since it uses less digits than its factorization.

4228642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234.

The product of its digits is 6144, while the sum is 28.

The square root of 4228642 is about 2056.3662125215. The cubic root of 4228642 is about 161.7087945383.

The spelling of 4228642 in words is "four million, two hundred twenty-eight thousand, six hundred forty-two".