378656 has 12 divisors (see below), whose sum is σ = 745542. Its totient is φ = 189312.

The previous prime is 378629. The next prime is 378661. The reversal of 378656 is 656873.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 234256 + 144400 = 484^2 + 380^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 378656.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5885 + ... + 5948.

2³⁷⁸⁶⁵⁶ is an apocalyptic number.

It is an amenable number.

378656 is a deficient number, since it is larger than the sum of its proper divisors (366886).

378656 is a wasteful number, since it uses less digits than its factorization.

378656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11843 (or 11835 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 378656 is about 615.3503067359. The cubic root of 378656 is about 72.3460705600.

The spelling of 378656 in words is "three hundred seventy-eight thousand, six hundred fifty-six".