4228538 has 4 divisors (see below), whose sum is σ = 6342810. Its totient is φ = 2114268.

The previous prime is 4228537. The next prime is 4228559. The reversal of 4228538 is 8358224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2582449 + 1646089 = 1607^2 + 1283^2 .

It is a d-powerful number, because it can be written as 4⁴ + 2¹⁵ + 2²² + 8² + 5⁴ + 3² + 8³ .

It is not an unprimeable number, because it can be changed into a prime (4228531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057133 + ... + 1057136.

Almost surely, 2^4228538 is an apocalyptic number.

4228538 is a deficient number, since it is larger than the sum of its proper divisors (2114272).

4228538 is a wasteful number, since it uses less digits than its factorization.

4228538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114271.

The product of its digits is 15360, while the sum is 32.

The square root of 4228538 is about 2056.3409250414. The cubic root of 4228538 is about 161.7074688288.

The spelling of 4228538 in words is "four million, two hundred twenty-eight thousand, five hundred thirty-eight".