67366780 has 72 divisors (see below), whose sum is σ = 161406000. Its totient is φ = 23542272.

The previous prime is 67366777. The next prime is 67366781. The reversal of 67366780 is 8766376.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67366781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63696 + ... + 64744.

It is an arithmetic number, because the mean of its divisors is an integer number (2241750).

Almost surely, 2^67366780 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 67366780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80703000).

67366780 is an abundant number, since it is smaller than the sum of its proper divisors (94039220).

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

67366780 is a wasteful number, since it uses less digits than its factorization.

67366780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103 (or 1088 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 67366780 is about 8207.7268473067. The cubic root of 67366780 is about 406.8946033234.

The spelling of 67366780 in words is "sixty-seven million, three hundred sixty-six thousand, seven hundred eighty".