8378028 has 36 divisors (see below), whose sum is σ = 21582288. Its totient is φ = 2739360.

The previous prime is 8378011. The next prime is 8378039. The reversal of 8378028 is 8208738.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 8377983 and 8378001.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 288 + ... + 4103.

It is an arithmetic number, because the mean of its divisors is an integer number (599508).

Almost surely, 2^8378028 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 8378028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10791144).

8378028 is an abundant number, since it is smaller than the sum of its proper divisors (13204260).

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

8378028 is a wasteful number, since it uses less digits than its factorization.

8378028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4454 (or 4449 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 8378028 is about 2894.4823371373. The cubic root of 8378028 is about 203.1018764368.

The spelling of 8378028 in words is "eight million, three hundred seventy-eight thousand, twenty-eight".