390378 has 8 divisors (see below), whose sum is σ = 780768. Its totient is φ = 130124.

The previous prime is 390373. The next prime is 390389. The reversal of 390378 is 873093.

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

390378 is an admirable number.

It is a nialpdrome in base 9.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 390378.

It is not an unprimeable number, because it can be changed into a prime (390373) 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, 32526 + ... + 32537.

It is an arithmetic number, because the mean of its divisors is an integer number (97596).

2³⁹⁰³⁷⁸ is an apocalyptic number.

390378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

390378 is a wasteful number, since it uses less digits than its factorization.

390378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65068.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 390378 is about 624.8023687535. The cubic root of 390378 is about 73.0850325825.

The spelling of 390378 in words is "three hundred ninety thousand, three hundred seventy-eight".