378422 has 16 divisors (see below), whose sum is σ = 628992. Its totient is φ = 169320.

The previous prime is 378407. The next prime is 378439. The reversal of 378422 is 224873.

It is a junction number, because it is equal to n+sod(n) for n = 378391 and 378400.

It is a congruent number.

It is an unprimeable number.

378422 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2183 + ... + 2349.

It is an arithmetic number, because the mean of its divisors is an integer number (39312).

2³⁷⁸⁴²² is an apocalyptic number.

378422 is a deficient number, since it is larger than the sum of its proper divisors (250570).

378422 is a wasteful number, since it uses less digits than its factorization.

378422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283.

The product of its digits is 2688, while the sum is 26.

The square root of 378422 is about 615.1601417517. The cubic root of 378422 is about 72.3311647977.

The spelling of 378422 in words is "three hundred seventy-eight thousand, four hundred twenty-two".