378171845 has 8 divisors (see below), whose sum is σ = 453911040. Its totient is φ = 302467600.

The previous prime is 378171841. The next prime is 378171853. The reversal of 378171845 is 548171873.

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

It is not a de Polignac number, because 378171845 - 2² = 378171841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 378171796 and 378171805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378171841) 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, 34820 + ... + 44370.

It is an arithmetic number, because the mean of its divisors is an integer number (56738880).

Almost surely, 2^378171845 is an apocalyptic number.

It is an amenable number.

378171845 is a deficient number, since it is larger than the sum of its proper divisors (75739195).

378171845 is an equidigital number, since it uses as much as digits as its factorization.

378171845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17475.

The product of its digits is 188160, while the sum is 44.

The square root of 378171845 is about 19446.6409695865. The cubic root of 378171845 is about 723.1522316733.

The spelling of 378171845 in words is "three hundred seventy-eight million, one hundred seventy-one thousand, eight hundred forty-five".