382278 has 32 divisors (see below), whose sum is σ = 856800. Its totient is φ = 113568.

The previous prime is 382271. The next prime is 382303. The reversal of 382278 is 872283.

It is a super-2 number, since 2×382278² = 292272938568, which contains 22 as substring.

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 382278.

It is not an unprimeable number, because it can be changed into a prime (382271) by changing a digit.

382278 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 15 ways as a sum of consecutive naturals, for example, 13168 + ... + 13196.

It is an arithmetic number, because the mean of its divisors is an integer number (26775).

2³⁸²²⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 382278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428400).

382278 is an abundant number, since it is smaller than the sum of its proper divisors (474522).

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

382278 is a wasteful number, since it uses less digits than its factorization.

382278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73 (or 47 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 382278 is about 618.2863414309. The cubic root of 382278 is about 72.5760122316.

It can be divided in two parts, 3822 and 78, that multiplied together give a square (298116 = 546²).

The spelling of 382278 in words is "three hundred eighty-two thousand, two hundred seventy-eight".