378665674 has 8 divisors (see below), whose sum is σ = 577310148. Its totient is φ = 186228960.

The previous prime is 378665657. The next prime is 378665681. The reversal of 378665674 is 476566873.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 324540225 + 54125449 = 18015^2 + 7357^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1551787 + ... + 1552030.

Almost surely, 2^378665674 is an apocalyptic number.

378665674 is a deficient number, since it is larger than the sum of its proper divisors (198644474).

378665674 is a wasteful number, since it uses less digits than its factorization.

378665674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103880.

The product of its digits is 5080320, while the sum is 52.

The square root of 378665674 is about 19459.3338529355. Note that the first 3 decimals coincide. The cubic root of 378665674 is about 723.4668666004.

The spelling of 378665674 in words is "three hundred seventy-eight million, six hundred sixty-five thousand, six hundred seventy-four".