394038226 has 16 divisors (see below), whose sum is σ = 632714400. Its totient is φ = 183485088.

The previous prime is 394038221. The next prime is 394038247. The reversal of 394038226 is 622830493.

It is a super-2 number, since 2×394038226² = 310532247098454152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (394038221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85635 + ... + 90118.

It is an arithmetic number, because the mean of its divisors is an integer number (39544650).

Almost surely, 2^394038226 is an apocalyptic number.

394038226 is a deficient number, since it is larger than the sum of its proper divisors (238676174).

394038226 is a wasteful number, since it uses less digits than its factorization.

394038226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175833.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 394038226 is about 19850.3961169544. The cubic root of 394038226 is about 733.1274008997.

The spelling of 394038226 in words is "three hundred ninety-four million, thirty-eight thousand, two hundred twenty-six".