378446 has 4 divisors (see below), whose sum is σ = 567672. Its totient is φ = 189222.

The previous prime is 378439. The next prime is 378449. The reversal of 378446 is 644873.

It is a happy number.

It is a semiprime because it is the product of two primes.

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 378446.

It is not an unprimeable number, because it can be changed into a prime (378449) by changing a digit.

378446 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 as a sum of consecutive naturals, namely, 94610 + ... + 94613.

It is an arithmetic number, because the mean of its divisors is an integer number (141918).

2³⁷⁸⁴⁴⁶ is an apocalyptic number.

378446 is a deficient number, since it is larger than the sum of its proper divisors (189226).

378446 is a wasteful number, since it uses less digits than its factorization.

378446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189225.

The product of its digits is 16128, while the sum is 32.

The square root of 378446 is about 615.1796485580. The cubic root of 378446 is about 72.3326938766.

The spelling of 378446 in words is "three hundred seventy-eight thousand, four hundred forty-six".