378645 has 8 divisors (see below), whose sum is σ = 605856. Its totient is φ = 201936.

The previous prime is 378629. The next prime is 378661. The reversal of 378645 is 546873.

It is an interprime number because it is at equal distance from previous prime (378629) and next prime (378661).

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

It is not a de Polignac number, because 378645 - 2⁴ = 378629 is a prime.

It is a Curzon number.

378645 is a lucky number.

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 378645.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12607 + ... + 12636.

It is an arithmetic number, because the mean of its divisors is an integer number (75732).

2³⁷⁸⁶⁴⁵ is an apocalyptic number.

It is an amenable number.

378645 is a deficient number, since it is larger than the sum of its proper divisors (227211).

378645 is a wasteful number, since it uses less digits than its factorization.

378645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25251.

The product of its digits is 20160, while the sum is 33.

The square root of 378645 is about 615.3413686727. The cubic root of 378645 is about 72.3453699993.

The spelling of 378645 in words is "three hundred seventy-eight thousand, six hundred forty-five".