4028838 has 16 divisors (see below), whose sum is σ = 8790336. Its totient is φ = 1220840.

The previous prime is 4028833. The next prime is 4028839. The reversal of 4028838 is 8388204.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 4028799 and 4028808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4028833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30456 + ... + 30587.

It is an arithmetic number, because the mean of its divisors is an integer number (549396).

Almost surely, 2^4028838 is an apocalyptic number.

4028838 is an abundant number, since it is smaller than the sum of its proper divisors (4761498).

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

4028838 is a wasteful number, since it uses less digits than its factorization.

4028838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61059.

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 4028838 is about 2007.1965524084. The cubic root of 4028838 is about 159.1206710232.

The spelling of 4028838 in words is "four million, twenty-eight thousand, eight hundred thirty-eight".