67638226 has 8 divisors (see below), whose sum is σ = 103816944. Its totient is φ = 33032580.

The previous prime is 67638209. The next prime is 67638247. The reversal of 67638226 is 62283676.

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, 393160 + ... + 393331.

It is an arithmetic number, because the mean of its divisors is an integer number (12977118).

Almost surely, 2^67638226 is an apocalyptic number.

67638226 is a deficient number, since it is larger than the sum of its proper divisors (36178718).

67638226 is a wasteful number, since it uses less digits than its factorization.

67638226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786536.

The product of its digits is 145152, while the sum is 40.

The square root of 67638226 is about 8224.2462268587. The cubic root of 67638226 is about 407.4403812061.

The spelling of 67638226 in words is "sixty-seven million, six hundred thirty-eight thousand, two hundred twenty-six".