378497194 has 4 divisors (see below), whose sum is σ = 567745794. Its totient is φ = 189248596.

The previous prime is 378497191. The next prime is 378497227. The reversal of 378497194 is 491794873.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 378497025 + 169 = 19455^2 + 13^2 .

It is not an unprimeable number, because it can be changed into a prime (378497191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94624297 + ... + 94624300.

Almost surely, 2^378497194 is an apocalyptic number.

378497194 is a deficient number, since it is larger than the sum of its proper divisors (189248600).

378497194 is a wasteful number, since it uses less digits than its factorization.

378497194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189248599.

The product of its digits is 1524096, while the sum is 52.

The square root of 378497194 is about 19455.0043433560. The cubic root of 378497194 is about 723.3595531327.

The spelling of 378497194 in words is "three hundred seventy-eight million, four hundred ninety-seven thousand, one hundred ninety-four".