378138345 has 48 divisors (see below), whose sum is σ = 670570560. Its totient is φ = 181778688.

The previous prime is 378138317. The next prime is 378138373. The reversal of 378138345 is 543831873.

378138345 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (378138317) and next prime (378138373).

It is not a de Polignac number, because 378138345 - 2⁹ = 378137833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 378138297 and 378138306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 107271 + ... + 110739.

It is an arithmetic number, because the mean of its divisors is an integer number (13970220).

Almost surely, 2^378138345 is an apocalyptic number.

It is an amenable number.

378138345 is a deficient number, since it is larger than the sum of its proper divisors (292432215).

378138345 is a wasteful number, since it uses less digits than its factorization.

378138345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3546 (or 3533 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 378138345 is about 19445.7796192387. The cubic root of 378138345 is about 723.1308777875.

The spelling of 378138345 in words is "three hundred seventy-eight million, one hundred thirty-eight thousand, three hundred forty-five".