378055506 has 16 divisors (see below), whose sum is σ = 774553248. Its totient is φ = 122944800.

The previous prime is 378055471. The next prime is 378055507. The reversal of 378055506 is 605550873.

It is not an unprimeable number, because it can be changed into a prime (378055507) 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, 768160 + ... + 768651.

It is an arithmetic number, because the mean of its divisors is an integer number (48409578).

Almost surely, 2^378055506 is an apocalyptic number.

378055506 is an abundant number, since it is smaller than the sum of its proper divisors (396497742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

378055506 is a wasteful number, since it uses less digits than its factorization.

378055506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536857.

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 378055506 is about 19443.6495031154. The cubic root of 378055506 is about 723.0780683555.

The spelling of 378055506 in words is "three hundred seventy-eight million, fifty-five thousand, five hundred six".