378220 has 12 divisors (see below), whose sum is σ = 794304. Its totient is φ = 151280.

The previous prime is 378193. The next prime is 378223. The reversal of 378220 is 22873.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 378191 and 378200.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 378220.

It is not an unprimeable number, because it can be changed into a prime (378223) 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, 9436 + ... + 9475.

It is an arithmetic number, because the mean of its divisors is an integer number (66192).

2³⁷⁸²²⁰ is an apocalyptic number.

It is an amenable number.

378220 is an abundant number, since it is smaller than the sum of its proper divisors (416084).

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

378220 is a wasteful number, since it uses less digits than its factorization.

378220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18920 (or 18918 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 378220 is about 614.9959349459. The cubic root of 378220 is about 72.3182924878.

The spelling of 378220 in words is "three hundred seventy-eight thousand, two hundred twenty".