378803605 has 8 divisors (see below), whose sum is σ = 481303512. Its totient is φ = 285216768.

The previous prime is 378803603. The next prime is 378803611. The reversal of 378803605 is 506308873.

It can be written as a sum of positive squares in 4 ways, for example, as 14070001 + 364733604 = 3751^2 + 19098^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 378803605 - 2¹ = 378803603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378803603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2228172 + ... + 2228341.

It is an arithmetic number, because the mean of its divisors is an integer number (60162939).

Almost surely, 2^378803605 is an apocalyptic number.

It is an amenable number.

378803605 is a deficient number, since it is larger than the sum of its proper divisors (102499907).

378803605 is a wasteful number, since it uses less digits than its factorization.

378803605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4456535.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 378803605 is about 19462.8776135493. The cubic root of 378803605 is about 723.5546981639.

The spelling of 378803605 in words is "three hundred seventy-eight million, eight hundred three thousand, six hundred five".