378904970 has 16 divisors (see below), whose sum is σ = 682547688. Its totient is φ = 151446720.

The previous prime is 378904969. The next prime is 378904979. The reversal of 378904970 is 79409873.

It can be written as a sum of positive squares in 4 ways, for example, as 300918409 + 77986561 = 17347^2 + 8831^2 .

It is not an unprimeable number, because it can be changed into a prime (378904979) 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, 92 + ... + 27528.

Almost surely, 2^378904970 is an apocalyptic number.

378904970 is a deficient number, since it is larger than the sum of its proper divisors (303642718).

378904970 is a wasteful number, since it uses less digits than its factorization.

378904970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28825.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 378904970 is about 19465.4814993105. The cubic root of 378904970 is about 723.6192316759.

The spelling of 378904970 in words is "three hundred seventy-eight million, nine hundred four thousand, nine hundred seventy".