4078928 has 40 divisors (see below), whose sum is σ = 9166080. Its totient is φ = 1722240.

The previous prime is 4078897. The next prime is 4078951. The reversal of 4078928 is 8298704.

4078928 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

4078928 is strictly pandigital in base 8.

It is a plaindrome in base 15.

It is a zygodrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 4078891 and 4078900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8618 + ... + 9078.

It is an arithmetic number, because the mean of its divisors is an integer number (229152).

Almost surely, 2^4078928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4078928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4583040).

4078928 is an abundant number, since it is smaller than the sum of its proper divisors (5087152).

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

4078928 is a wasteful number, since it uses less digits than its factorization.

4078928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 4078928 is about 2019.6356106981. The cubic root of 4078928 is about 159.7773987813. Note that the first 3 decimals are identical.

The spelling of 4078928 in words is "four million, seventy-eight thousand, nine hundred twenty-eight".