67280668 has 24 divisors (see below), whose sum is σ = 144912992. Its totient is φ = 26616384.

The previous prime is 67280659. The next prime is 67280671. The reversal of 67280668 is 86608276.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 92055 + ... + 92782.

Almost surely, 2^67280668 is an apocalyptic number.

It is an amenable number.

67280668 is an abundant number, since it is smaller than the sum of its proper divisors (77632324).

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

67280668 is a wasteful number, since it uses less digits than its factorization.

67280668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184861 (or 184859 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 67280668 is about 8202.4793812603. The cubic root of 67280668 is about 406.7211575583.

The spelling of 67280668 in words is "sixty-seven million, two hundred eighty thousand, six hundred sixty-eight".