378906 has 16 divisors (see below), whose sum is σ = 826848. Its totient is φ = 114800.

The previous prime is 378901. The next prime is 378919. The reversal of 378906 is 609873.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nialpdrome in base 5.

It is a zygodrome in base 5.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 378906.

It is not an unprimeable number, because it can be changed into a prime (378901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2805 + ... + 2936.

It is an arithmetic number, because the mean of its divisors is an integer number (51678).

2³⁷⁸⁹⁰⁶ is an apocalyptic number.

378906 is an abundant number, since it is smaller than the sum of its proper divisors (447942).

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

378906 is a wasteful number, since it uses less digits than its factorization.

378906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5757.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 378906 is about 615.5534095430. The cubic root of 378906 is about 72.3619887361.

Subtracting from 378906 its sum of digits (33), we obtain a palindrome (378873).

The spelling of 378906 in words is "three hundred seventy-eight thousand, nine hundred six".