378226199 has 4 divisors (see below), whose sum is σ = 407320536. Its totient is φ = 349131864.

The previous prime is 378226187. The next prime is 378226223. The reversal of 378226199 is 991622873.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 991622873 = 47 ⋅21098359.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378226199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378226139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14547149 + ... + 14547174.

It is an arithmetic number, because the mean of its divisors is an integer number (101830134).

Almost surely, 2^378226199 is an apocalyptic number.

378226199 is a deficient number, since it is larger than the sum of its proper divisors (29094337).

378226199 is a wasteful number, since it uses less digits than its factorization.

378226199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29094336.

The product of its digits is 326592, while the sum is 47.

The square root of 378226199 is about 19448.0384357909. The cubic root of 378226199 is about 723.1868758295.

The spelling of 378226199 in words is "three hundred seventy-eight million, two hundred twenty-six thousand, one hundred ninety-nine".