67221238 has 24 divisors (see below), whose sum is σ = 118958544. Its totient is φ = 28400400.

The previous prime is 67221229. The next prime is 67221241. The reversal of 67221238 is 83212276.

It is a congruent number.

It is an unprimeable number.

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, 2128 + ... + 11788.

It is an arithmetic number, because the mean of its divisors is an integer number (4956606).

Almost surely, 2^67221238 is an apocalyptic number.

67221238 is a deficient number, since it is larger than the sum of its proper divisors (51737306).

67221238 is a wasteful number, since it uses less digits than its factorization.

67221238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9748 (or 9741 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 67221238 is about 8198.8558957942. The cubic root of 67221238 is about 406.6013680279.

The spelling of 67221238 in words is "sixty-seven million, two hundred twenty-one thousand, two hundred thirty-eight".