378771506 has 16 divisors (see below), whose sum is σ = 573554520. Its totient is φ = 187595520.

The previous prime is 378771493. The next prime is 378771529. The reversal of 378771506 is 605177873.

It can be written as a sum of positive squares in 4 ways, for example, as 377952481 + 819025 = 19441^2 + 905^2 .

It is an unprimeable number.

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, 92960 + ... + 96948.

Almost surely, 2^378771506 is an apocalyptic number.

378771506 is a deficient number, since it is larger than the sum of its proper divisors (194783014).

378771506 is a wasteful number, since it uses less digits than its factorization.

378771506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4429.

The product of its (nonzero) digits is 246960, while the sum is 44.

The square root of 378771506 is about 19462.0529749562. The cubic root of 378771506 is about 723.5342600987.

The spelling of 378771506 in words is "three hundred seventy-eight million, seven hundred seventy-one thousand, five hundred six".