378278 has 4 divisors (see below), whose sum is σ = 567420. Its totient is φ = 189138.

The previous prime is 378277. The next prime is 378283. The reversal of 378278 is 872873.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 872873 = 23 ⋅37951.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 378278.

It is not an unprimeable number, because it can be changed into a prime (378277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94568 + ... + 94571.

It is an arithmetic number, because the mean of its divisors is an integer number (141855).

2³⁷⁸²⁷⁸ is an apocalyptic number.

378278 is a deficient number, since it is larger than the sum of its proper divisors (189142).

378278 is a wasteful number, since it uses less digits than its factorization.

378278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189141.

The product of its digits is 18816, while the sum is 35.

The square root of 378278 is about 615.0430879215. The cubic root of 378278 is about 72.3219889666.

It can be divided in two parts, 378 and 278, that added together give a palindrome (656).

The spelling of 378278 in words is "three hundred seventy-eight thousand, two hundred seventy-eight".