67940928 has 84 divisors (see below), whose sum is σ = 212463888. Its totient is φ = 20586240.

The previous prime is 67940927. The next prime is 67940947. The reversal of 67940928 is 82904976.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (67940921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 975 + ... + 11697.

It is an arithmetic number, because the mean of its divisors is an integer number (2529332).

Almost surely, 2^67940928 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 67940928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106231944).

67940928 is an abundant number, since it is smaller than the sum of its proper divisors (144522960).

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

67940928 is a wasteful number, since it uses less digits than its factorization.

67940928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10752 (or 10739 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 67940928 is about 8242.6287069114. The cubic root of 67940928 is about 408.0472840240.

The spelling of 67940928 in words is "sixty-seven million, nine hundred forty thousand, nine hundred twenty-eight".