378310645 has 8 divisors (see below), whose sum is σ = 454217400. Its totient is φ = 302485440.

The previous prime is 378310643. The next prime is 378310651. The reversal of 378310645 is 546013873.

It can be written as a sum of positive squares in 4 ways, for example, as 100821681 + 277488964 = 10041^2 + 16658^2 .

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

It is not a de Polignac number, because 378310645 - 2¹ = 378310643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378310643) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9666 + ... + 29155.

It is an arithmetic number, because the mean of its divisors is an integer number (56777175).

Almost surely, 2^378310645 is an apocalyptic number.

It is an amenable number.

378310645 is a deficient number, since it is larger than the sum of its proper divisors (75906755).

378310645 is a wasteful number, since it uses less digits than its factorization.

378310645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40775.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 378310645 is about 19450.2093819064. The cubic root of 378310645 is about 723.2406934432.

The spelling of 378310645 in words is "three hundred seventy-eight million, three hundred ten thousand, six hundred forty-five".