67678416 has 180 divisors, whose sum is σ = 214757088. Its totient is φ = 20621952.

The previous prime is 67678379. The next prime is 67678423. The reversal of 67678416 is 61487676.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 657021 + ... + 657123.

Almost surely, 2^67678416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67678416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107378544).

67678416 is an abundant number, since it is smaller than the sum of its proper divisors (147078672).

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

67678416 is a wasteful number, since it uses less digits than its factorization.

67678416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 121 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 67678416 is about 8226.6892490236. The cubic root of 67678416 is about 407.5210643132.

The spelling of 67678416 in words is "sixty-seven million, six hundred seventy-eight thousand, four hundred sixteen".