378278994 has 16 divisors (see below), whose sum is σ = 756904320. Its totient is φ = 126035280.

The previous prime is 378278977. The next prime is 378279001. The reversal of 378278994 is 499872873.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1047 + ... + 27525.

It is an arithmetic number, because the mean of its divisors is an integer number (47306520).

Almost surely, 2^378278994 is an apocalyptic number.

378278994 is an abundant number, since it is smaller than the sum of its proper divisors (378625326).

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

378278994 is a wasteful number, since it uses less digits than its factorization.

378278994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28865.

The product of its digits is 6096384, while the sum is 57.

The square root of 378278994 is about 19449.3957232609. The cubic root of 378278994 is about 723.2205231327.

The spelling of 378278994 in words is "three hundred seventy-eight million, two hundred seventy-eight thousand, nine hundred ninety-four".