67068720 has 60 divisors (see below), whose sum is σ = 225241536. Its totient is φ = 17884800.

The previous prime is 67068697. The next prime is 67068721. The reversal of 67068720 is 2786076.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (67068721) 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, 45856 + ... + 47295.

Almost surely, 2^67068720 is an apocalyptic number.

67068720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67068720 is an abundant number, since it is smaller than the sum of its proper divisors (158172816).

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

67068720 is a wasteful number, since it uses less digits than its factorization.

67068720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93170 (or 93161 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 67068720 is about 8189.5494381559. The cubic root of 67068720 is about 406.2936230868.

The spelling of 67068720 in words is "sixty-seven million, sixty-eight thousand, seven hundred twenty".