67668930 has 96 divisors (see below), whose sum is σ = 206578944. Its totient is φ = 15043968.

The previous prime is 67668911. The next prime is 67668943. The reversal of 67668930 is 3986676.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21859 + ... + 24761.

It is an arithmetic number, because the mean of its divisors is an integer number (2151864).

Almost surely, 2^67668930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67668930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103289472).

67668930 is an abundant number, since it is smaller than the sum of its proper divisors (138910014).

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

67668930 is a wasteful number, since it uses less digits than its factorization.

67668930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2960 (or 2957 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 67668930 is about 8226.1126906942. The cubic root of 67668930 is about 407.5020236516.

The spelling of 67668930 in words is "sixty-seven million, six hundred sixty-eight thousand, nine hundred thirty".