378226 has 8 divisors (see below), whose sum is σ = 570204. Its totient is φ = 188160.

The previous prime is 378223. The next prime is 378229. The reversal of 378226 is 622873.

It is a Cunningham number, because it is equal to 615²+1.

It is an interprime number because it is at equal distance from previous prime (378223) and next prime (378229).

It can be written as a sum of positive squares in 2 ways, for example, as 378225 + 1 = 615^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 378194 and 378203.

It is a congruent number.

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, 226 + ... + 898.

2³⁷⁸²²⁶ is an apocalyptic number.

378226 is a deficient number, since it is larger than the sum of its proper divisors (191978).

378226 is a wasteful number, since it uses less digits than its factorization.

378226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956.

The product of its digits is 4032, while the sum is 28.

The square root of 378226 is about 615.0008130076. Note that the first 3 decimals coincide. The cubic root of 378226 is about 72.3186748997.

The spelling of 378226 in words is "three hundred seventy-eight thousand, two hundred twenty-six".