4538128 has 20 divisors (see below), whose sum is σ = 10048960. Its totient is φ = 1944864.

The previous prime is 4538113. The next prime is 4538129. The reversal of 4538128 is 8218354.

It is a self number, because there is not a number n which added to its sum of digits gives 4538128.

It is not an unprimeable number, because it can be changed into a prime (4538129) 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, 20148 + ... + 20371.

It is an arithmetic number, because the mean of its divisors is an integer number (502448).

Almost surely, 2^4538128 is an apocalyptic number.

It is an amenable number.

4538128 is an abundant number, since it is smaller than the sum of its proper divisors (5510832).

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

4538128 is a wasteful number, since it uses less digits than its factorization.

4538128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40534 (or 40528 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 4538128 is about 2130.2882434075. The cubic root of 4538128 is about 165.5613327380.

It can be divided in two parts, 4 and 538128, that multiplied together give a palindrome (2152512).

The spelling of 4538128 in words is "four million, five hundred thirty-eight thousand, one hundred twenty-eight".