67743138 has 8 divisors (see below), whose sum is σ = 135486288. Its totient is φ = 22581044.

The previous prime is 67743133. The next prime is 67743139. The reversal of 67743138 is 83134776.

It is a sphenic number, since it is the product of 3 distinct primes.

67743138 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 67743096 and 67743105.

It is not an unprimeable number, because it can be changed into a prime (67743133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5645256 + ... + 5645267.

It is an arithmetic number, because the mean of its divisors is an integer number (16935786).

Almost surely, 2^67743138 is an apocalyptic number.

67743138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67743138 is a wasteful number, since it uses less digits than its factorization.

67743138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11290528.

The product of its digits is 84672, while the sum is 39.

The square root of 67743138 is about 8230.6219692074. The cubic root of 67743138 is about 407.6509293255.

The spelling of 67743138 in words is "sixty-seven million, seven hundred forty-three thousand, one hundred thirty-eight".