67678242 has 8 divisors (see below), whose sum is σ = 135356496. Its totient is φ = 22559412.

The previous prime is 67678231. The next prime is 67678243. The reversal of 67678242 is 24287676.

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

67678242 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 67678194 and 67678203.

It is not an unprimeable number, because it can be changed into a prime (67678243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5639848 + ... + 5639859.

It is an arithmetic number, because the mean of its divisors is an integer number (16919562).

Almost surely, 2^67678242 is an apocalyptic number.

67678242 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.

67678242 is a wasteful number, since it uses less digits than its factorization.

67678242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11279712.

The product of its digits is 225792, while the sum is 42.

The square root of 67678242 is about 8226.6786736811. The cubic root of 67678242 is about 407.5207150697.

The spelling of 67678242 in words is "sixty-seven million, six hundred seventy-eight thousand, two hundred forty-two".