378730916 has 12 divisors (see below), whose sum is σ = 666442140. Its totient is φ = 188318880.

The previous prime is 378730873. The next prime is 378730931. The reversal of 378730916 is 619037873.

It can be written as a sum of positive squares in 2 ways, for example, as 121000000 + 257730916 = 11000^2 + 16054^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260831 + ... + 262278.

It is an arithmetic number, because the mean of its divisors is an integer number (55536845).

Almost surely, 2^378730916 is an apocalyptic number.

It is an amenable number.

378730916 is a deficient number, since it is larger than the sum of its proper divisors (287711224).

378730916 is a wasteful number, since it uses less digits than its factorization.

378730916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523294 (or 523292 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 378730916 is about 19461.0101484995. The cubic root of 378730916 is about 723.5084139934.

The spelling of 378730916 in words is "three hundred seventy-eight million, seven hundred thirty thousand, nine hundred sixteen".