378028 has 24 divisors (see below), whose sum is σ = 790272. Its totient is φ = 154704.

The previous prime is 378023. The next prime is 378041. The reversal of 378028 is 820873.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 377987 and 378005.

It is not an unprimeable number, because it can be changed into a prime (378023) 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, 351 + ... + 937.

It is an arithmetic number, because the mean of its divisors is an integer number (32928).

2³⁷⁸⁰²⁸ 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 378028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395136).

378028 is an abundant number, since it is smaller than the sum of its proper divisors (412244).

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

378028 is a wasteful number, since it uses less digits than its factorization.

378028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 378028 is about 614.8398165376. The cubic root of 378028 is about 72.3060531717.

The spelling of 378028 in words is "three hundred seventy-eight thousand, twenty-eight".