67689042 has 8 divisors (see below), whose sum is σ = 135378096. Its totient is φ = 22563012.

The previous prime is 67689007. The next prime is 67689047. The reversal of 67689042 is 24098676.

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

67689042 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 67688985 and 67689003.

It is not an unprimeable number, because it can be changed into a prime (67689047) 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, 5640748 + ... + 5640759.

It is an arithmetic number, because the mean of its divisors is an integer number (16922262).

Almost surely, 2^67689042 is an apocalyptic number.

67689042 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.

67689042 is a wasteful number, since it uses less digits than its factorization.

67689042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11281512.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 67689042 is about 8227.3350484832. The cubic root of 67689042 is about 407.5423911136.

The spelling of 67689042 in words is "sixty-seven million, six hundred eighty-nine thousand, forty-two".