378226197 has 12 divisors (see below), whose sum is σ = 551632224. Its totient is φ = 249702120.

The previous prime is 378226187. The next prime is 378226223. The reversal of 378226197 is 791622873.

378226197 is a `hidden beast` number, since 3 + 7 + 8 + 22 + 619 + 7 = 666.

It is not a de Polignac number, because 378226197 - 2⁸ = 378225941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378226187) 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 11 ways as a sum of consecutive naturals, for example, 203079 + ... + 204932.

It is an arithmetic number, because the mean of its divisors is an integer number (45969352).

Almost surely, 2^378226197 is an apocalyptic number.

It is an amenable number.

378226197 is a deficient number, since it is larger than the sum of its proper divisors (173406027).

378226197 is a wasteful number, since it uses less digits than its factorization.

378226197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408120 (or 408117 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 378226197 is about 19448.0383843718. The cubic root of 378226197 is about 723.1868745548.

The spelling of 378226197 in words is "three hundred seventy-eight million, two hundred twenty-six thousand, one hundred ninety-seven".